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To solve mole-mole problems requires a balanced chemical equation and a mole ratio. Use the coefficients from the balanced equation and multiply it by the appropriate mole ratio to get an answer. This quiz will cover simple mole-mole problems. You will need a calculator. Select the best answer from the choices.
How many moles of hydrogen gas are needed to react completely with two moles of nitrogen gas? 3H2 + N2 --> 2NH3.
12 mol
6 mol
3 mol
1 mol
How much ammonia (NH3) is produced from two moles of nitrogen gas? 3H2 + N2 --> 2NH3
4 mol
6 mol
12 mol
16 mol
How many moles of oxygen gas are produced from the decomposition of six moles of potassium chloride? 2KClO3 --> 2KCl + 3O2
6 mol
4 mol
3 mol
9 mol
How many moles of potassium chloride are produced from the decomposition of six moles of potassium chloride? 2KClO3 --> 2KCl + 3O2
2 mol
6 mol
3 mol
4 mol
How many moles of hydrogen gas are produced from the reaction of three moles of zinc and an excess of hydrochloric acid? Zn + 2HCl --> ZnCl2 + H2
1 mol
3 mol
4 mol
5 mol
One type of anaerobic respiration converts glucose C6H12O6, to ethanol and carbon dioxide. If the molecular weight of glucose is 180 grams/mol and the molar mass of ethanol is 46 g/mol, how many grams of carbon dioxide are produced when 1 mol of glucose is digested via respiration?
80g
88g
98g
100g
How many moles of hydrogen are needed to completely react with 2.0 moles of nitrogen?
1 moles
8 moles
2 moles
6 moles
How many moles of oxygen are produced by the decomposition of 6.0 moles of potassium chlorate?
4 moles
2 moles
9 moles
8 moles
