Stoichiometry 2

Stoichiometry II 1) Given the equation below, how many grams of copper chloride would be produced by reacting 221.5 grams of potassium chloride?

6KCl + Cu3(PO4)2  2 K3PO4 + 3 CuCl2 (g)

Answer: 200 g CuCl2

2) Given the equation below, how many grams of 2NaNO3 would be required to produce 209 grams of Na2SO4 in the same reaction?

2 NaNO3 + MgSO4  Na2SO4 + Mg(NO3)2 Answer: 500g 2NaNO3

3) Given the equation below, how many grams of C10H8 would be produced by 60 grams of 4 H2O?

C10H8 + 12 O2  10 CO2 + 4 H2O Answer: 250g C10H8

4) Given the equation below, how many grams of ZnCl2 would be produced if 320 grams of 2 HCl were reacted with Zn ?

Zn + 2 HCl  ZnCl2 + H2

Answer: 400 grams ZnCl2

5) Given the equation below, how many grams of NaNO3 would be produced if 1275 grams of AgNO3 were reacted with NaCl ?

AgNO3 + NaCl  AgCl +NaNO3 Answer: 450 grams NaNO3

6) Given the equation below, how many grams of 2H2O would be required to produce 178 grams of 2O2 in the same reaction?

CH4 + 2 O2  CO2 + 2 H2O

Answer: 100 grams 2 H2O

7) Given the equation below, how many grams of sodium hydroxide would be produced by reacting 468 grams of sodium nitrate?

NaOH + KNO3 --> NaNO3 + KOH

Answer: 220 grams NaOH

8) Given the equation below, how many grams of 6 NaBr3 would be required to produce 556 grams of 2FeBr3 in the same reaction?

2 Fe + 6 NaBr --> 2 FeBr3 + 6 Na

Answer: 4000 grams 6 NaBr3

9) Given the equation below, how many grams of 8 Ag2S would be produced by reacting 731 grams of 16 Ag?

16Ag + S8  8Ag2S Answer: 420 grams 8 Ag2S

10) Given the equation below, how many grams of 4Al would be required to produce 138 grams of 2Al2O3 in the same reaction?

4Al + 3O2  2Al2O3

Answer: 146 grams 4Al