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## Stoichiometry Problems

Use your knowledge of stoichiometry to solve the following problems. You must
write and balance a chemical equation for each problem before you can proceed.
Show your work for all problems! Failing to show your work will make studying harder if not impossible!

1. Nitrogen Gas and Hydrogen Gas react to form Ammonia. (All reactants and products are gases).
1. If you have 4 mol of hydrogen gas how many moles of ammonia form?
2. If you want to make 25 mol of ammonia, how much nitrogen and hydrogen gas do you need in moles?
3. If you have 3 mol of nitrogen gas how many moles of ammonia form?
4. You have 12 mol nitrogen and an unlimited supply of hydrogen. How much ammonia can you make (in moles)?
2. Zinc and Hydrochloric Acid react to form Zinc Chloride and Hydrogen Gas.

1. You want to make 0.75 mol of hydrogen gas. How many grams of zinc do you need to use?
2. You have 130.8 g of zinc. How many moles of hydrogen gas can you make?
1. Benzene (C6H6) burns in oxygen to form carbon dioxide and water.

1. If you burn 2 mol of benzene how much oxygen (in moles) is required to burn all of the benzene?
2. How many moles of carbon dioxide result from the burning of 2 mol of benzene?
3. How many moles of water result from the burning of 78.1 g of benzene?
4. How many grams of carbon dioxide result from the burning of 156.2 g of benzene?
2. Elemental sulfur (S8) reacts with fluorine gas to form sulfur hexafluoride.

1. How many moles of fluorine gas are required to react with each mole of elemental sulfur?
2. If you have 12 mol of fluorine gas then how many moles of sulfur hexafluoride can you make?
3. If you have 0.05 mol elemental sulfur then how many moles of sulfur hexafluoride can you make?
4. You have 128.25 g of elemental sulfur. How many grams of fluorine gas are required to react with all of the sulfur?
5. You have 384.8 g of elemental sulfur. If you have more than enough fluorine gas to react with all of the sulfur then how many grams of sulfur hexafluoride can you make?
This activity belongs with the Stoichiometry Group Activity and Homework.
And with the Limiting Reagent and Percent Yield Activity and Homework.
Last Updated: Jun 01, 2016 Home