Stoichiometry Quiz Review

Given the balanced chemical reaction:

H₂(g) + Cl₂(g) --> 2HCl(g)

What is the total number of moles of HCl(g) produced when 1.5 moles of Cl₂(g) reacts completely with H₂(g) ?

• 5.0 mol

• 2.0 mol

• 3.0 mol

• 6.0 mol

Given the balanced chemical reaction:

Fe(s) + CuSO₄(aq) --> FeSO₄(aq) + Cu(s)

What mass in grams of iron is required to produce 1.0 mole of copper?

• 26.0 g

• 55.8 g

• 63.6 g

• 192 g

When glucose is consumed, it reacts with oxygen in the body to produce carbon dioxide, water, and energy. How many grams of carbon dioxide would be produced if 45 g of C₆H₁₂O₆ completely reacted with oxygen?

C₆H₁₂O₆(s) + 9 O₂(g) --> 6 CO₂(g) + 6 H₂O(l)

• 1.5 g

• 1.8 g

• 11 g

• 66 g

How many grams of chromium are needed to react with an excess of CuSO₄ to produce 27.0 g Cu?

2Cr(s) + 3CuSO₄(aq) --> Cr₂(SO₄)₃(aq) + 3Cu(s)

• 14.7 g

• 18.0 g

• 33.2 g

• 81.5 g

During metabolism, how many moles of glucose, C₆H₁₂O₆, can be "burned" biologically when 10.0 mol of oxygen is available?

C₆H₁₂O₆(s) + 6O₂(g) --> 6CO₂(g) + 6H₂O(l)

• 0.938 mol

• 1.67 mol

• 53.3 mol

• 60.0 mol

Sodium hydroxide reacts with hydrochloric acid to produce sodium chloride and water. What is the total number of grams of water produced when 116 grams of salt are produced?

NaOH(aq) + HCl(aq) --> NaCl(aq) + H₂O(l)

• 9.00 g

• 18.0 g

• 35.8 g

• 376 g

Given the balanced equation:

2C₂H₂(g) + 5O₂(g) --> 4CO₂(g) + 2H₂O(l)

How many moles of water are produced after the complete combustion of 2.0 mole of acetlyene, C₂H₂(g)?

• 2.0 mol

• 4.0 mol

• 1.0 mol

• 10. mol

Given the balanced equation:

PbCl₂(aq) + Na₂CrO₄(aq) --> PbCrO₄(s) + 2NaCl(aq)

How many moles of lead(II) chromate are formed after reacting completely with 2 moles of lead(II) chloride?

• 1 mol

• 2 mol

• 3 mol

• 4 mol

Given the balanced equation:

2C₂H₂(g) + 5O₂(g) --> 4CO₂(g) + 2H₂O(l)

How many moles of water are produced after the complete combustion of 2.0 mole of acetlyene, C₂H₂(g)?

• 2.0 mol

• 4.0 mol

• 1.0 mol

• 10. mol

Given the balanced chemical reaction:

2Na + S --> Na₂S

What is the total number of moles of sodium required to completely react with 0.50 moles of sulfur?

• 1.0 mol

• 2.0 mol

• 0.5 mol

• 4.0 mol