What is the formula for Ammonium Thiocyanate?
Q. What is the formula for Ammonium Thiocyanate?
Asked by ton - Sun Nov 2 22:41:34 2008 - - 2 Answers - 0 Comments
A. NH4SCN
Answered by Adam - Sun Nov 2 22:45:32 2008
Q. What is the formula for Ammonium Thiocyanate?
Asked by ton - Sun Nov 2 22:41:34 2008 - - 2 Answers - 0 Comments
A. NH4SCN
Answered by Adam - Sun Nov 2 22:45:32 2008
What is the function of ammoniumthiocyanate solution in cat ion column?
Q. In radiochemistry, separation of Am from other nuclides, use cation resin. washed the columns with dilute acid solutions.after that, rise the col with ammonium thiocyanate sol. What I want to know is what is the purpose of using thiocyanate solution?
Asked by okka m - Mon Oct 2 20:32:58 2006 - - 1 Answers - 0 Comments
A. eluent?
Answered by squanto - Mon Oct 2 20:36:16 2006
Q. In radiochemistry, separation of Am from other nuclides, use cation resin. washed the columns with dilute acid solutions.after that, rise the col with ammonium thiocyanate sol. What I want to know is what is the purpose of using thiocyanate solution?
Asked by okka m - Mon Oct 2 20:32:58 2006 - - 1 Answers - 0 Comments
A. eluent?
Answered by squanto - Mon Oct 2 20:36:16 2006
is this exothermic or endothermic?
Q. 1.boiling soup 2.condensation if water vapor 3.water evaporating 4.ice melting 5.ammonium thiocyanate and barium hydroxide are mixed at 25degreesC, the temperature drops
Asked by Katie - Tue Oct 20 20:02:19 2009 - - 1 Answers - 0 Comments
A. im guessing: exo endo exo endo exo
Answered by katieeeee16 - Tue Oct 20 20:11:30 2009
Q. 1.boiling soup 2.condensation if water vapor 3.water evaporating 4.ice melting 5.ammonium thiocyanate and barium hydroxide are mixed at 25degreesC, the temperature drops
Asked by Katie - Tue Oct 20 20:02:19 2009 - - 1 Answers - 0 Comments
A. im guessing: exo endo exo endo exo
Answered by katieeeee16 - Tue Oct 20 20:11:30 2009
WHAT DO YOU GUYS THINK ???
Q. For the science project i am having, i want to do my project on Barium hydroxide and ammonium thiocyanate. Also along with the project i am going to do the experiment where you mix them both in a beaker, then stir it, then it sticks on the board thing .. I am in grade 7 tho.. Do you think its a good idea, plus i heard it has an unpleasant smell?? What do you guys think, is the smell that strong and yucky? but other than that? what do you guys think???
Asked by Duckeez - Sun Feb 15 16:41:19 2009 - - 1 Answers - 0 Comments
Q. For the science project i am having, i want to do my project on Barium hydroxide and ammonium thiocyanate. Also along with the project i am going to do the experiment where you mix them both in a beaker, then stir it, then it sticks on the board thing .. I am in grade 7 tho.. Do you think its a good idea, plus i heard it has an unpleasant smell?? What do you guys think, is the smell that strong and yucky? but other than that? what do you guys think???
Asked by Duckeez - Sun Feb 15 16:41:19 2009 - - 1 Answers - 0 Comments
endothermic reaction...?
Q. when ammonium thiocyanate & barium hydroxide are mixed what substances can you detect from the smell?& what is the balanced equation?(NH4+ & SCN-)please help
Asked by ping - Sun Oct 14 08:43:02 2007 - - 1 Answers - 0 Comments
A. 2NH4SCN + Ba(OH)2 ==> Ba(SCN)2 + 2NH3 + 2H2O What substances can you detect from the smell? Ammonia NH3.
Answered by Hahaha - Sun Oct 14 11:18:55 2007
Q. when ammonium thiocyanate & barium hydroxide are mixed what substances can you detect from the smell?& what is the balanced equation?(NH4+ & SCN-)please help
Asked by ping - Sun Oct 14 08:43:02 2007 - - 1 Answers - 0 Comments
A. 2NH4SCN + Ba(OH)2 ==> Ba(SCN)2 + 2NH3 + 2H2O What substances can you detect from the smell? Ammonia NH3.
Answered by Hahaha - Sun Oct 14 11:18:55 2007
Need help with Chemistry Questions?
Q. 1. A compound contains only carbon, hydrogen, and oxygen. Combustion of 11.75 mg of the compound yields 17.61 mg CO2 and 4.81 mg H2O. The molar mass of the compound is 176.1 g/mol. What are the empirical and molecular formulas of the compound? (Type your answer using the format CO2 for CO2.) 2. What mass of ammonium thiocyanate (NH4SCN) must be used if it is to react completely with 8.7 g barium hydroxide octahydrate? 3. Phosphorus can be prepared from calcium phosphate by the following reaction. 2 Ca3(PO4)2(s) + 6 SiO2(s) + 10 C(s) 6 CaSiO3(s) + P4(s) + 10 CO(g) Phosphorite is a mineral that contains Ca3(PO4)2 plus other non-phosphorus-containing compounds. What is the maximum amount of P4 that can be produced from 4.0 kg of… [cont.]
Asked by sylvia - Fri Sep 25 16:22:47 2009 - - 1 Answers - 0 Comments
A. next time post thiese questions one by one. they are discouraging like this
Answered by MacD - Fri Sep 25 16:29:39 2009
Q. 1. A compound contains only carbon, hydrogen, and oxygen. Combustion of 11.75 mg of the compound yields 17.61 mg CO2 and 4.81 mg H2O. The molar mass of the compound is 176.1 g/mol. What are the empirical and molecular formulas of the compound? (Type your answer using the format CO2 for CO2.) 2. What mass of ammonium thiocyanate (NH4SCN) must be used if it is to react completely with 8.7 g barium hydroxide octahydrate? 3. Phosphorus can be prepared from calcium phosphate by the following reaction. 2 Ca3(PO4)2(s) + 6 SiO2(s) + 10 C(s) 6 CaSiO3(s) + P4(s) + 10 CO(g) Phosphorite is a mineral that contains Ca3(PO4)2 plus other non-phosphorus-containing compounds. What is the maximum amount of P4 that can be produced from 4.0 kg of… [cont.]
Asked by sylvia - Fri Sep 25 16:22:47 2009 - - 1 Answers - 0 Comments
A. next time post thiese questions one by one. they are discouraging like this
Answered by MacD - Fri Sep 25 16:29:39 2009
How many atoms of hydrogen are in 2.70 pg of humulone/other AP Chemistry?
Q. 1. How many atoms of hydrogen are in 2.70 pg of humulone 2. What is the mass of 1.40 109 molecules of humulone 3. What is the mass of three molecule(s) of humulone 4.What mass of ammonium thiocyanate (NH4SCN) must be used if it is to react completely with 8.1 g barium hydroxide octahydrate? 5. What mass in kg of NH3 must be used to produce 4.9 106 kg HNO3 by the Ostwald process, assuming 100% yield in each reaction? thanks for anyone who can help me =] molecular formula is:: C21H30O5
Asked by patricia_kyungieee - Thu Jul 17 21:45:07 2008 - - 2 Answers - 0 Comments
A. What is the molecular formula for humulone? Then determine the molecular weight for humulone. How many atoms of Hydrogen are in a molecule of humulone? How many moles of humulone are in 2.70 pg? Figure out moles of humulone, then determine moles of H in the humulone based upon the molecular formula. Based upon moles of H, then determine atoms using Avagadros number. questions 2 and 3 are just reviewing all these relationships. Question four you need to make sure you know the balanced reaction first, then using the molecular weights of the compounds, you should be able to figure out the g of NH4SCN. Question five...figure out moles of HNO3, then use the reaction equation to determine the relationship of HNO3 to NH3. Then convert… [cont.]
Answered by punkinhead_3fang - Thu Jul 17 21:53:40 2008
Q. 1. How many atoms of hydrogen are in 2.70 pg of humulone 2. What is the mass of 1.40 109 molecules of humulone 3. What is the mass of three molecule(s) of humulone 4.What mass of ammonium thiocyanate (NH4SCN) must be used if it is to react completely with 8.1 g barium hydroxide octahydrate? 5. What mass in kg of NH3 must be used to produce 4.9 106 kg HNO3 by the Ostwald process, assuming 100% yield in each reaction? thanks for anyone who can help me =] molecular formula is:: C21H30O5
Asked by patricia_kyungieee - Thu Jul 17 21:45:07 2008 - - 2 Answers - 0 Comments
A. What is the molecular formula for humulone? Then determine the molecular weight for humulone. How many atoms of Hydrogen are in a molecule of humulone? How many moles of humulone are in 2.70 pg? Figure out moles of humulone, then determine moles of H in the humulone based upon the molecular formula. Based upon moles of H, then determine atoms using Avagadros number. questions 2 and 3 are just reviewing all these relationships. Question four you need to make sure you know the balanced reaction first, then using the molecular weights of the compounds, you should be able to figure out the g of NH4SCN. Question five...figure out moles of HNO3, then use the reaction equation to determine the relationship of HNO3 to NH3. Then convert… [cont.]
Answered by punkinhead_3fang - Thu Jul 17 21:53:40 2008
chem help One of rela?
Q. One of relatively few reactions that takes place directly between two solids at room temperature is given in the equation below. In this equation, the 8 H2O in Ba(OH)2 8 H2O indicates the presence of eight water molecules. This compound is called barium hydroxide octahydrate. (a) Balance the equation. (Use the lowest possible coefficients.) Ba(OH)2 8 H2O(s) + NH4SCN(s) Ba(SCN)2(s) + H2O(l) + NH3(g) (b) What mass of ammonium thiocyanate (NH4SCN) must be used if it is to react completely with 8.1 g barium hydroxide octahydrate? g
Asked by Loreal S - Sat Feb 2 23:38:54 2008 - - 1 Answers - 0 Comments
A. Ba(OH)2.8H20 + 2 NH4SCN --> 2 NH3 + Ba(SCN)2 + 10 H20 (I don't think Ba(OH). 8h20 exists. I think that it is Ba(OH)2.2H2O ) determine the molar mass of Ba(OH)2.8H20 and divide that into 8/1 g that gives you mols of Ba(OH) used The mols of NH3 formed is twice the number of mols of Ba(OH)2 octatahydrate Mass MNH3 = 2 Mols Ba(OH)2.8h20 x 2 mol NH3/1 molBa(OH)2.8H2O x 17 gNH3/Mol NH3
Answered by George F - Sat Feb 2 23:50:42 2008
Q. One of relatively few reactions that takes place directly between two solids at room temperature is given in the equation below. In this equation, the 8 H2O in Ba(OH)2 8 H2O indicates the presence of eight water molecules. This compound is called barium hydroxide octahydrate. (a) Balance the equation. (Use the lowest possible coefficients.) Ba(OH)2 8 H2O(s) + NH4SCN(s) Ba(SCN)2(s) + H2O(l) + NH3(g) (b) What mass of ammonium thiocyanate (NH4SCN) must be used if it is to react completely with 8.1 g barium hydroxide octahydrate? g
Asked by Loreal S - Sat Feb 2 23:38:54 2008 - - 1 Answers - 0 Comments
A. Ba(OH)2.8H20 + 2 NH4SCN --> 2 NH3 + Ba(SCN)2 + 10 H20 (I don't think Ba(OH). 8h20 exists. I think that it is Ba(OH)2.2H2O ) determine the molar mass of Ba(OH)2.8H20 and divide that into 8/1 g that gives you mols of Ba(OH) used The mols of NH3 formed is twice the number of mols of Ba(OH)2 octatahydrate Mass MNH3 = 2 Mols Ba(OH)2.8h20 x 2 mol NH3/1 molBa(OH)2.8H2O x 17 gNH3/Mol NH3
Answered by George F - Sat Feb 2 23:50:42 2008
WILL YOU PLEASE Help Me Solve This Question?!?
Q. Here is the balanced equation: 1 Ba(OH)2 8 H2O(s) + 2 NH4SCN(s) ---> 3 Ba(SCN)2(s) + 4 H2O(l) + 5 NH3(g) and here is the question: "What mass of ammonium thiocyanate (NH4SCN) must be used if it is to react completely with 3.3 g barium hydroxide octahydrate?" I don't understand any of these questions! Please help me! Chemist In Florida - What about the H2O? Kim J - Are you sure? My friend had used this equation and got her questions correct?
Asked by Jordan - Thu Mar 19 21:01:43 2009 - - 4 Answers - 0 Comments
A. The equation says(see coefficients of the balanced equation) that 1 mole of the octahydrate requires 2 moles of the thiocyanate for complete reaction Using a periodic chart or table of elements you can get the gram mass of these two compounds. The molar mass or molecular weight in grams is 1 mole octahydrate: Ba = 137.3 O = 16 H =1 so Ba(OH)2 = 137.3 + 16 +16+1+1= 171.3 H2O adds up to 18. 8 of those is 8 X 18 =144 the octahydrate then is 171.3 +144 = 315.3 grams/mole thiocyanate: N=14 H=1 S= 32 C = 12 so: 14 +4 +32+12 + another 14 = 76 grams/mole the equation says 2 moles so the total is 2 X 76 = 152 grams So: 315.3 grams of octahydrate requires 152 g of thiocyanate if 315.3 requires 152, then 3.3 grams octahydrate will require 3.3 [cont.]
Answered by Doc89891 - Thu Mar 19 21:23:18 2009
Q. Here is the balanced equation: 1 Ba(OH)2 8 H2O(s) + 2 NH4SCN(s) ---> 3 Ba(SCN)2(s) + 4 H2O(l) + 5 NH3(g) and here is the question: "What mass of ammonium thiocyanate (NH4SCN) must be used if it is to react completely with 3.3 g barium hydroxide octahydrate?" I don't understand any of these questions! Please help me! Chemist In Florida - What about the H2O? Kim J - Are you sure? My friend had used this equation and got her questions correct?
Asked by Jordan - Thu Mar 19 21:01:43 2009 - - 4 Answers - 0 Comments
A. The equation says(see coefficients of the balanced equation) that 1 mole of the octahydrate requires 2 moles of the thiocyanate for complete reaction Using a periodic chart or table of elements you can get the gram mass of these two compounds. The molar mass or molecular weight in grams is 1 mole octahydrate: Ba = 137.3 O = 16 H =1 so Ba(OH)2 = 137.3 + 16 +16+1+1= 171.3 H2O adds up to 18. 8 of those is 8 X 18 =144 the octahydrate then is 171.3 +144 = 315.3 grams/mole thiocyanate: N=14 H=1 S= 32 C = 12 so: 14 +4 +32+12 + another 14 = 76 grams/mole the equation says 2 moles so the total is 2 X 76 = 152 grams So: 315.3 grams of octahydrate requires 152 g of thiocyanate if 315.3 requires 152, then 3.3 grams octahydrate will require 3.3 [cont.]
Answered by Doc89891 - Thu Mar 19 21:23:18 2009
AP Chemistry Predicting Reactions Questions--Single and Double Replacement?
Q. I need some help with these predicting reactions questions... I understand how to do most of them, but the answers I got don't match up with the correct answers (I found these on the AP site, some are not balanced). Can someone please EXPLAIN to me step by step how these answers are reached? Thanks! Oh, and please follow the NEW AP requirements and BALANCE the reactions... it just makes a lot more sense. If you are not familiar with the format, it requires you to cross out spectator ions as well. Thanks! I have tried multiple times and can't figure out what I'm doing wrong! A solution of ammonium thiocyanate is added to a solution of iron (iii) chloride. the answer i found was: Fe3+ + SCN- --> FeSCN2+ (not sure if this answer was balanced) [cont.]
Asked by Hannah - Mon Dec 28 17:35:18 2009 - - 1 Answers - 0 Comments
A. For an ion to be considered a "spectator," it must be unchanged during a reaction. While it seems that Sn(2+) + Fe(3+) --> Sn(4+) + Fe(2+) is the same, both ions have been changed. The tin has lost electrons and the iron has gained electrons (oxidation/reduction). This one is balanced by mass, but not by charge. In redox reactions you have to do both.
Answered by Hip Hop Anonymous - Mon Dec 28 17:46:48 2009
Q. I need some help with these predicting reactions questions... I understand how to do most of them, but the answers I got don't match up with the correct answers (I found these on the AP site, some are not balanced). Can someone please EXPLAIN to me step by step how these answers are reached? Thanks! Oh, and please follow the NEW AP requirements and BALANCE the reactions... it just makes a lot more sense. If you are not familiar with the format, it requires you to cross out spectator ions as well. Thanks! I have tried multiple times and can't figure out what I'm doing wrong! A solution of ammonium thiocyanate is added to a solution of iron (iii) chloride. the answer i found was: Fe3+ + SCN- --> FeSCN2+ (not sure if this answer was balanced) [cont.]
Asked by Hannah - Mon Dec 28 17:35:18 2009 - - 1 Answers - 0 Comments
A. For an ion to be considered a "spectator," it must be unchanged during a reaction. While it seems that Sn(2+) + Fe(3+) --> Sn(4+) + Fe(2+) is the same, both ions have been changed. The tin has lost electrons and the iron has gained electrons (oxidation/reduction). This one is balanced by mass, but not by charge. In redox reactions you have to do both.
Answered by Hip Hop Anonymous - Mon Dec 28 17:46:48 2009
needs some help!?
Q. 1) Humulone, C21H30O5, is one of the flavor components that gives a bitter taste to the hops used in making beer. (d) How many atoms of hydrogen are in 2.30 pg of humulone? (e) What is the mass of 1.10 109 molecules of humulone? (f) What is the mass of one molecule(s) of humulone? 2) 1 Ba(OH)2 8 H2O(s) + 2 NH4SCN(s) -> 1 Ba(SCN)2(s) + 10 H2O(l) + 2 NH3(g) What mass of ammonium thiocyanate (NH4SCN) must be used if it is to react completely with 6.0 g barium hydroxide octahydrate?
Asked by Elizabeth K - Tue Jul 15 19:53:04 2008 - - 1 Answers - 0 Comments
Q. 1) Humulone, C21H30O5, is one of the flavor components that gives a bitter taste to the hops used in making beer. (d) How many atoms of hydrogen are in 2.30 pg of humulone? (e) What is the mass of 1.10 109 molecules of humulone? (f) What is the mass of one molecule(s) of humulone? 2) 1 Ba(OH)2 8 H2O(s) + 2 NH4SCN(s) -> 1 Ba(SCN)2(s) + 10 H2O(l) + 2 NH3(g) What mass of ammonium thiocyanate (NH4SCN) must be used if it is to react completely with 6.0 g barium hydroxide octahydrate?
Asked by Elizabeth K - Tue Jul 15 19:53:04 2008 - - 1 Answers - 0 Comments
Which one has a greater number of ions in the formula unit?
Q. Sodium acetate or Potassium thiocyanate Potassium carbonate or Zinc chloride Ammonium sulfate or Potassium permanganate Calcium hypochlorite or Potassium Ferricyanide Mercury (I) sulfate or Titanium (IV) oxide Iron (III) sulfate or Sodium chlorate Copper (I) Chloride or Sodium chromate Calcium hydroxide or Potassium phosphate please any help will be very appreciated!!!
Asked by Catherine S - Sun Mar 7 19:58:27 2010 - - 1 Answers - 0 Comments
A. Sodium acetate or Potassium thiocyanate -- NONE NaC2H3O2 (2 ions) ;KSCN (2 ions) Potassium carbonate or Zinc chloride -- NONE K2CO3 (3 ions); ZnCl2 (3 ions) Ammonium sulfate or Potassium permanganate -- (NH4)2SO4 (NH4)2SO4 (3 ions); KMnO4 (2 ions) Calcium hypochlorite or Potassium Ferricyanide -- K3Fe(CN)6 Ca(HClO)2 (3 ions); K3Fe(CN)6 (4 ions) Iron (III) sulfate or Sodium chlorate -- Fe2(SO4)3 Fe2(SO4)3 (5 ions); NaClO3 (2 ions) Copper (I) Chloride or Sodium chromate -- Na2CrO4 CuCl (2 ions); Na2CrO4 (3 ions) Calcium hydroxide or Potassium phosphate -- K3PO4 Ca(OH)2 (3 ions); K3PO4 (4 ions)
Answered by Mrs - Sun Mar 7 20:52:55 2010
Q. Sodium acetate or Potassium thiocyanate Potassium carbonate or Zinc chloride Ammonium sulfate or Potassium permanganate Calcium hypochlorite or Potassium Ferricyanide Mercury (I) sulfate or Titanium (IV) oxide Iron (III) sulfate or Sodium chlorate Copper (I) Chloride or Sodium chromate Calcium hydroxide or Potassium phosphate please any help will be very appreciated!!!
Asked by Catherine S - Sun Mar 7 19:58:27 2010 - - 1 Answers - 0 Comments
A. Sodium acetate or Potassium thiocyanate -- NONE NaC2H3O2 (2 ions) ;KSCN (2 ions) Potassium carbonate or Zinc chloride -- NONE K2CO3 (3 ions); ZnCl2 (3 ions) Ammonium sulfate or Potassium permanganate -- (NH4)2SO4 (NH4)2SO4 (3 ions); KMnO4 (2 ions) Calcium hypochlorite or Potassium Ferricyanide -- K3Fe(CN)6 Ca(HClO)2 (3 ions); K3Fe(CN)6 (4 ions) Iron (III) sulfate or Sodium chlorate -- Fe2(SO4)3 Fe2(SO4)3 (5 ions); NaClO3 (2 ions) Copper (I) Chloride or Sodium chromate -- Na2CrO4 CuCl (2 ions); Na2CrO4 (3 ions) Calcium hydroxide or Potassium phosphate -- K3PO4 Ca(OH)2 (3 ions); K3PO4 (4 ions)
Answered by Mrs - Sun Mar 7 20:52:55 2010
do the following solutions react ?
Q. 1) iron chloride and potassium thiocyanate . 2) sodium chloride and ammonium nitrate 3) sodium carbonate and hydrochloric acid 4)calcium chloride and sodium carbonate 5) copper sufate and ammonium solution give evidence in support of ur answer like formation of precipitates,formation of gaseous product, (gas bubbles) ,occurence of colour change ?
Asked by varinder s - Thu Sep 13 23:23:47 2007 - - 1 Answers - 0 Comments
A. I assume they are all in aqueous solution 1) Yes, [Fe(SCN)(H2O)5]++ will be formed making the solution look blood-red 2)Nope. Salts of sodium and nitrate are usually water-soluble 3)Yup. it will yield CO2: CO3-- + 2H+ ==> H2O + CO2 so gas formation or effervescence will be observed 4)Yup. Precipitation of insoluble calcium carbonate will occur 5)Yup. adding ammonia to a Cu++ solution will cause copper(II)hydroxide to form since ammonia is basic: Cu2+(aq) + 2OH (aq) Cu(OH)2(s) But the addition of excess ammonia causes the precipitate to dissolve. Ammonia will form a coordination compound with copper: Cu(OH)2(s) + 4 NH3(aq) [Cu(NH3)4]++(aq) + 2 OH (aq) The solution will turn deep-blue
Answered by Aken - Thu Sep 13 23:39:35 2007
Q. 1) iron chloride and potassium thiocyanate . 2) sodium chloride and ammonium nitrate 3) sodium carbonate and hydrochloric acid 4)calcium chloride and sodium carbonate 5) copper sufate and ammonium solution give evidence in support of ur answer like formation of precipitates,formation of gaseous product, (gas bubbles) ,occurence of colour change ?
Asked by varinder s - Thu Sep 13 23:23:47 2007 - - 1 Answers - 0 Comments
A. I assume they are all in aqueous solution 1) Yes, [Fe(SCN)(H2O)5]++ will be formed making the solution look blood-red 2)Nope. Salts of sodium and nitrate are usually water-soluble 3)Yup. it will yield CO2: CO3-- + 2H+ ==> H2O + CO2 so gas formation or effervescence will be observed 4)Yup. Precipitation of insoluble calcium carbonate will occur 5)Yup. adding ammonia to a Cu++ solution will cause copper(II)hydroxide to form since ammonia is basic: Cu2+(aq) + 2OH (aq) Cu(OH)2(s) But the addition of excess ammonia causes the precipitate to dissolve. Ammonia will form a coordination compound with copper: Cu(OH)2(s) + 4 NH3(aq) [Cu(NH3)4]++(aq) + 2 OH (aq) The solution will turn deep-blue
Answered by Aken - Thu Sep 13 23:39:35 2007
Ionic, molecular Compounds, elements and acids?
Q. I did these questions for homework, and was wondering if I made any mistakes. Indicate whether the chemical is an element, ionic compound, molecular compound, or an acid. Write the correct formulas for each of the following according to the type of chemical. 1. potassium thiocyanate, Ionic compound, KSCN 2. phosphorus - element, P 3. dinitrogen monoxide - Ionic compound, N*2O 4. iodine - element, I 5. tetraphosphorus decaoxide - molecular compound, P*4O*10 6. glucose - element, C*6H*12O*6 7. potassium iodine - Ionic compound, KI 8. lithium nitride - Ionic compound, Li*3N 9. hydrofluoric acid - acid, didn't know 10. magnesium hydride - Ionic compound, MgH*2 11. zinc chloride - Ionic compound, ZnCl*2 12. aluminum chloride - Ionic compound, [cont.]
Asked by (: Muffin Man :) - Wed Oct 3 21:11:08 2007 - - 1 Answers - 0 Comments
A. the acids are probably ionic because they donate H+ ions.
Answered by Wes - Wed Oct 3 21:15:27 2007
Q. I did these questions for homework, and was wondering if I made any mistakes. Indicate whether the chemical is an element, ionic compound, molecular compound, or an acid. Write the correct formulas for each of the following according to the type of chemical. 1. potassium thiocyanate, Ionic compound, KSCN 2. phosphorus - element, P 3. dinitrogen monoxide - Ionic compound, N*2O 4. iodine - element, I 5. tetraphosphorus decaoxide - molecular compound, P*4O*10 6. glucose - element, C*6H*12O*6 7. potassium iodine - Ionic compound, KI 8. lithium nitride - Ionic compound, Li*3N 9. hydrofluoric acid - acid, didn't know 10. magnesium hydride - Ionic compound, MgH*2 11. zinc chloride - Ionic compound, ZnCl*2 12. aluminum chloride - Ionic compound, [cont.]
Asked by (: Muffin Man :) - Wed Oct 3 21:11:08 2007 - - 1 Answers - 0 Comments
A. the acids are probably ionic because they donate H+ ions.
Answered by Wes - Wed Oct 3 21:15:27 2007
I need a balanced chemical equation for these experiments?
Q. Any help is appreciated!!! 4) Ammonium oxalate test for Ca2+ To a test tube containing approximately 6 drops of a 0.10 M Ca(NO3)2 solution add up to 10 drops of 0.10 M (NH4)2C2O4, ammonium oxalate. Formation of a precipitate indicates Ca2+ in the form of CaC2O4 (Note: if other 2+ metals have not been removed, except for Mg2+, they would also precipitate here!) 5) S & O test for Mg2+ To a test tube containing approximately 6 drops of 0.10 M Mg(NO3)2 solution, add 5 drops of water and 2 drops of 1 M HCl. Add 2 drops of S & O reagent and then 6 M NaOH dropwise until a precipitate is formed, (do not confuse the dark color of the solution with a precipitate) the precipitate is Mg(OH)2. (Note: Ca2+ will also form a precipitate if it is… [cont.]
Asked by treegirl - Fri Mar 14 18:19:28 2008 - - 3 Answers - 0 Comments
A. 4) Ca(NO3)2 + (NH4)2C2O4 >> CaC2O4 + 2 NH4NO3 (Ca ion and NH4 ion simply changes places) 5) Mg(NO3)2 + 2NaOH >> Mg(OH)2 + 2NaNO3 same with Ca 6) Cu(NO3)2 + 2NH4(+) >> Cu(NH3)4 (2+) + 2HNO3 7) Co(NO3)2 + 4SCN(-) >> Co(SCN)4(2-) + + 2 NO3(-) 8) Fe(NO3)3 + 3KSCN >> FeSCN(2+) + 3KNO3
Answered by sunshinegirl - Fri Mar 14 18:33:34 2008
Q. Any help is appreciated!!! 4) Ammonium oxalate test for Ca2+ To a test tube containing approximately 6 drops of a 0.10 M Ca(NO3)2 solution add up to 10 drops of 0.10 M (NH4)2C2O4, ammonium oxalate. Formation of a precipitate indicates Ca2+ in the form of CaC2O4 (Note: if other 2+ metals have not been removed, except for Mg2+, they would also precipitate here!) 5) S & O test for Mg2+ To a test tube containing approximately 6 drops of 0.10 M Mg(NO3)2 solution, add 5 drops of water and 2 drops of 1 M HCl. Add 2 drops of S & O reagent and then 6 M NaOH dropwise until a precipitate is formed, (do not confuse the dark color of the solution with a precipitate) the precipitate is Mg(OH)2. (Note: Ca2+ will also form a precipitate if it is… [cont.]
Asked by treegirl - Fri Mar 14 18:19:28 2008 - - 3 Answers - 0 Comments
A. 4) Ca(NO3)2 + (NH4)2C2O4 >> CaC2O4 + 2 NH4NO3 (Ca ion and NH4 ion simply changes places) 5) Mg(NO3)2 + 2NaOH >> Mg(OH)2 + 2NaNO3 same with Ca 6) Cu(NO3)2 + 2NH4(+) >> Cu(NH3)4 (2+) + 2HNO3 7) Co(NO3)2 + 4SCN(-) >> Co(SCN)4(2-) + + 2 NO3(-) 8) Fe(NO3)3 + 3KSCN >> FeSCN(2+) + 3KNO3
Answered by sunshinegirl - Fri Mar 14 18:33:34 2008
Equations for these chemical reactions?
Q. copper(II)nitrate +Sodium Chloride copper(II)nitrate + EDTA copper(II)nitrate + sodium thiocyanate copper(II)nitrate + sodium chromate copper(II)nitrate + sodium dichromate Nickel(II)nitrate + sodium carbonate Nickel(II)nitrate + sodium sulfate nickel(II)nitrate + ammonium hydroxide Nickel(II)nitrate + sodium chloride Nickel(II)nitrate + EDTA Nickel(II)nitrate + sodium iodide Nickel(II)nitrate + sodium thiocyanide Nickel(II)nitrate + sodium chromate Nickel(II)nitrate + sodium dichromate Nickel(II)nitrate + sodium hydroxide lead(II)nitrate + sodium carbonate lead(II)nitrate + ammonium hydroxide lead(II)nitrate + sodium chloride lead(II)nitrate + EDTA lead(II)nitrate + sodium iodide lead(II)nitrate + sodium thiocyanate lead(II)nitrate +… [cont.]
Asked by Jan - Wed May 5 12:00:08 2010 - - 1 Answers - 0 Comments
Q. copper(II)nitrate +Sodium Chloride copper(II)nitrate + EDTA copper(II)nitrate + sodium thiocyanate copper(II)nitrate + sodium chromate copper(II)nitrate + sodium dichromate Nickel(II)nitrate + sodium carbonate Nickel(II)nitrate + sodium sulfate nickel(II)nitrate + ammonium hydroxide Nickel(II)nitrate + sodium chloride Nickel(II)nitrate + EDTA Nickel(II)nitrate + sodium iodide Nickel(II)nitrate + sodium thiocyanide Nickel(II)nitrate + sodium chromate Nickel(II)nitrate + sodium dichromate Nickel(II)nitrate + sodium hydroxide lead(II)nitrate + sodium carbonate lead(II)nitrate + ammonium hydroxide lead(II)nitrate + sodium chloride lead(II)nitrate + EDTA lead(II)nitrate + sodium iodide lead(II)nitrate + sodium thiocyanate lead(II)nitrate +… [cont.]
Asked by Jan - Wed May 5 12:00:08 2010 - - 1 Answers - 0 Comments
I need help. Naming ionic compounds and giving ionic formulas!?
Q. Give the formulas: 1. potassium phosphide 2. tin (IV) sulfide 3. ammonium sulfite 4. copper(I) perchlorate 5. lithium hypochlorite 6. sodium thiocyanate 7. aluminum arsenate 8. silver chromate 9. gold(I) bromate 10. barium silicate Give the names: 1. PbSO4 2. Ti2S3 3. CaSiO3 4. CrPO3 5. Mn(C2H3O2)4 6. FeC2O4 7. SnS2
Asked by Jeannie M - Sat Nov 24 20:47:02 2007 - - 2 Answers - 0 Comments
A. K3P SnS2 (NH4)SO3 CuClO4 LIClO NaSCN Al2(AsO4)3 Ag2CrO4 AuBrO3 BaSiO3 Lead sulfate Titanium (III) sulfide Calcium silicate Chromium (III) phosphate Manganese ( IV) acetate Iron (II) oxalate Tin (IV)sulfide
Answered by Dr.A - Sun Nov 25 00:35:03 2007
Q. Give the formulas: 1. potassium phosphide 2. tin (IV) sulfide 3. ammonium sulfite 4. copper(I) perchlorate 5. lithium hypochlorite 6. sodium thiocyanate 7. aluminum arsenate 8. silver chromate 9. gold(I) bromate 10. barium silicate Give the names: 1. PbSO4 2. Ti2S3 3. CaSiO3 4. CrPO3 5. Mn(C2H3O2)4 6. FeC2O4 7. SnS2
Asked by Jeannie M - Sat Nov 24 20:47:02 2007 - - 2 Answers - 0 Comments
A. K3P SnS2 (NH4)SO3 CuClO4 LIClO NaSCN Al2(AsO4)3 Ag2CrO4 AuBrO3 BaSiO3 Lead sulfate Titanium (III) sulfide Calcium silicate Chromium (III) phosphate Manganese ( IV) acetate Iron (II) oxalate Tin (IV)sulfide
Answered by Dr.A - Sun Nov 25 00:35:03 2007
CHEMISTRY HELP!!!! please help me.?
Q. i don't understand how to name inorganic compounds/formulas. for example LiOH . H2O = lithium hydroxide monohydrate...how does a person get monohydrate from H20? ammonium perchlorate = NH4CLO4...where does the "per" come from? how can a person tell if the endings to nitrate, nitride, or nitrite (as in other chemicals as well) Mn(SCN)2 = maganese (II) thiocyanate...where does the "thio" come from... if anyone could give me some basic rules on how to do the above and more, it would be vry much appreciated. thank you for ur time and help!
Asked by Miss Lovely - Thu Oct 4 02:13:59 2007 - - 3 Answers - 0 Comments
A. Let's see what I can do... Let's pick MgNOx (and x is a subscript number). When there are 4 oxygens (x=4), it's a per-something-ate When there are 3 oxygens, it's ends just with -ate and when there's 2 oxygens, it's -ite. Say the first compound name (In this case, Magnesium) and then say one of the following. Magnesium PerNitrate (MgNO4) Magnesium Nitrate (MgNO3) Magnesium Nitrite (MgNO2) For -Ides, there's no oxygens, it depends on how many electrons. So If we're trying to put Boron and Fluoride together, Boron has 3 valence (non-pairing) electrons so there would be an F on each electron and we'd call it BF3 (Boron Trifluoride). Hopefully that makes sense and helps a little.
Answered by DJPT - Thu Oct 4 02:35:38 2007
Q. i don't understand how to name inorganic compounds/formulas. for example LiOH . H2O = lithium hydroxide monohydrate...how does a person get monohydrate from H20? ammonium perchlorate = NH4CLO4...where does the "per" come from? how can a person tell if the endings to nitrate, nitride, or nitrite (as in other chemicals as well) Mn(SCN)2 = maganese (II) thiocyanate...where does the "thio" come from... if anyone could give me some basic rules on how to do the above and more, it would be vry much appreciated. thank you for ur time and help!
Asked by Miss Lovely - Thu Oct 4 02:13:59 2007 - - 3 Answers - 0 Comments
A. Let's see what I can do... Let's pick MgNOx (and x is a subscript number). When there are 4 oxygens (x=4), it's a per-something-ate When there are 3 oxygens, it's ends just with -ate and when there's 2 oxygens, it's -ite. Say the first compound name (In this case, Magnesium) and then say one of the following. Magnesium PerNitrate (MgNO4) Magnesium Nitrate (MgNO3) Magnesium Nitrite (MgNO2) For -Ides, there's no oxygens, it depends on how many electrons. So If we're trying to put Boron and Fluoride together, Boron has 3 valence (non-pairing) electrons so there would be an F on each electron and we'd call it BF3 (Boron Trifluoride). Hopefully that makes sense and helps a little.
Answered by DJPT - Thu Oct 4 02:35:38 2007
Who can help me with a Chemistry Compound Tournament Bracket? :]?
Q. Soo... my chemistry teacher decided to get creative and make a tournament bracket, where different compounds compete against each other. Round one's instructions were to calculate the molar mass and the highest one went to the next round. Round two's instructions were to see which had the highest number of atoms. I'm completely stuck on round three: the greatest number of ions in the formula unit wins. 1) Sodium Tetraborate [Na2B4O7] vs. Potassium Ferricyanide [K3Fe(CN)6] 2) Barium Carbonate [BaCO3] vs. Sodium Tungstate [Na2WO4] 3) Ammonium Acetate [C2H3O2NH4] vs. Aluminum Sodium Sulfate [AlNa(SO4)2] 4) Barium Sulfate [BaSO4] vs. Potassium Dichromate [K2Cr2O7] 5) Potassium Sodium Tartrate [KNaC4H4O6] vs. Potassium Thiocyanate [KSCN] 6)… [cont.]
Asked by RyanO! - Sun Mar 22 16:02:44 2009 - - 2 Answers - 0 Comments
A. okay, Ammonium Acetate [C2H3O2NH4] vs. Aluminum Sodium Sulfate [AlNa(SO4)2] you have to do two things to solve this problem, look and the compound name and look at the chemical formula. First, Ammonium Acetate. it is made up of Ammonium and Acetate. two ions. second, Aluminum Sodium Sulfate. it is made up of Aluminum and Sodium and Sulfate, three different ions. BUT look at the chemical formula: [AlNa(SO4)2] and you can see that you have to sulfates, so 4 ions in this compound
Answered by rl - Sun Mar 22 16:11:10 2009
Q. Soo... my chemistry teacher decided to get creative and make a tournament bracket, where different compounds compete against each other. Round one's instructions were to calculate the molar mass and the highest one went to the next round. Round two's instructions were to see which had the highest number of atoms. I'm completely stuck on round three: the greatest number of ions in the formula unit wins. 1) Sodium Tetraborate [Na2B4O7] vs. Potassium Ferricyanide [K3Fe(CN)6] 2) Barium Carbonate [BaCO3] vs. Sodium Tungstate [Na2WO4] 3) Ammonium Acetate [C2H3O2NH4] vs. Aluminum Sodium Sulfate [AlNa(SO4)2] 4) Barium Sulfate [BaSO4] vs. Potassium Dichromate [K2Cr2O7] 5) Potassium Sodium Tartrate [KNaC4H4O6] vs. Potassium Thiocyanate [KSCN] 6)… [cont.]
Asked by RyanO! - Sun Mar 22 16:02:44 2009 - - 2 Answers - 0 Comments
A. okay, Ammonium Acetate [C2H3O2NH4] vs. Aluminum Sodium Sulfate [AlNa(SO4)2] you have to do two things to solve this problem, look and the compound name and look at the chemical formula. First, Ammonium Acetate. it is made up of Ammonium and Acetate. two ions. second, Aluminum Sodium Sulfate. it is made up of Aluminum and Sodium and Sulfate, three different ions. BUT look at the chemical formula: [AlNa(SO4)2] and you can see that you have to sulfates, so 4 ions in this compound
Answered by rl - Sun Mar 22 16:11:10 2009
MAJOR HELP !!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!?
Q. Where can i buy chemicals ? LIKE .. Barium hydroxide and ammonium thiocyanate?
Asked by Cee - Sun Feb 15 21:39:05 2009 - - 3 Answers - 0 Comments
A. if u r below 18 it's hard to get them!!! but try to get them from ur teacher.
Answered by pacisthebest!!!! - Sun Feb 15 21:46:40 2009
Q. Where can i buy chemicals ? LIKE .. Barium hydroxide and ammonium thiocyanate?
Asked by Cee - Sun Feb 15 21:39:05 2009 - - 3 Answers - 0 Comments
A. if u r below 18 it's hard to get them!!! but try to get them from ur teacher.
Answered by pacisthebest!!!! - Sun Feb 15 21:46:40 2009
From Yahoo Answer Search: 'ammonium thiocyanate'
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Fri, 08 Jun 2007 08:12:31 GM
sodium . thiocyanate ammonium thiocyanate. potasstium . thiocyanate. calcium . thiocyanate. coprous thiocyante sodium pyrithione zinc pyrithione copper pyrithione sodium hydrosulfide.
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