Stoichiometry Practice 2

Note: To receive credit, all work must be shown in this format. Submissions without work will not earn any points.

1) Using the following equation:

2 NaOH + H2SO4 → 2 H2O + Na2SO4

How many grams of sodium sulfate will be formed if you start with 200. grams of sodium hydroxide?

2) Using the following equation:

Pb(SO4)2 + 4 LiNO3 → Pb(NO3)4 + 2 Li2SO4

How many grams of lithium nitrate will be needed to make 250. grams of lithium sulfate?

3) How many grams of HCl would be required to react completely with 5.00 grams of Ca(OH)2?

Ca(OH)2(s) + 2 HCl(aq) → CaCl2(aq) + 2 H2O(l)

4) If I used 35 g of calcium hydroxide, how many grams of calcium chloride would be formed?

Ca(OH)2(s) + 2 HCl(aq) → CaCl2(aq) + 2 H2O(l)

5) Calcium carbonate decomposes at high temperatures to form. carbon dioxide and calcium oxide:

CaCO3(s) → CO2(g) + CaO(s)

How many grams of calcium carbonate will I need to form. 3.45 g of carbon dioxide?

6) Ethylene burns in oxygen to form. carbon dioxide and water vapor:

C2H4(g)+ 3O2(g) → 2CO2(g) + 2H2O(g)

How many grams of water can be formed if 1.25 grams of ethylene (C2H4) are consumed in this reaction?

7) Using the following equation:

2Cl2(g)+C2H2(g) → C2H2Cl4(l)

How many grams of chlorine will be needed to make 75.0 grams of C2H2Cl4?