Kelso High-Chem H-Stoichiometry practice
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Last updated almost 5 years ago
11 questions
1
An apple pie needs 10 large apples, 2 crusts (top and bottom), and 1 tablespoon of cinnamon. Write a balanced equation that fits this situation. How many apples are needed to make 25 pies?
An apple pie needs 10 large apples, 2 crusts (top and bottom), and 1 tablespoon of cinnamon. Write a balanced equation that fits this situation. How many apples are needed to make 25 pies?
1
Two moles of potassium chloride and three moles of oxygen are produced from the decomposition of two moles of potassium chlorate, KClO3(s). Write the balanced equation. How many moles of oxygen are produced from 12 moles of potassium chlorate?
Two moles of potassium chloride and three moles of oxygen are produced from the decomposition of two moles of potassium chlorate, KClO3(s). Write the balanced equation. How many moles of oxygen are produced from 12 moles of potassium chlorate?
1
Using the equation from problem 2, how many moles of oxygen are produced from 14 moles of potassium chlorate?
Using the equation from problem 2, how many moles of oxygen are produced from 14 moles of potassium chlorate?
1
Calculate the number of moles of hydrogen chloride produced from 10 moles of hydrogen.
Calculate the number of moles of hydrogen chloride produced from 10 moles of hydrogen.
1
Calculate the number of moles of chlorine needed to form 14 moles of iron(III) chloride.
Calculate the number of moles of chlorine needed to form 14 moles of iron(III) chloride.
1
Calculate the number of grams of nitrogen dioxide that are produced from 4 moles of nitric oxide.
Calculate the number of grams of nitrogen dioxide that are produced from 4 moles of nitric oxide.
1
Calculate the mass of oxygen produced from the decomposition of 75.0 g of potassium chlorate.
Calculate the mass of oxygen produced from the decomposition of 75.0 g of potassium chlorate.
1
Calculate the mass of silver needed to react with chlorine to produce 84 g of silver chloride. (Hint: Write a balanced equation first.)
Calculate the mass of silver needed to react with chlorine to produce 84 g of silver chloride. (Hint: Write a balanced equation first.)
1
How many liters of carbon monoxide at STP are needed to react with 4.80 g of oxygen gas to produce carbon dioxide?
How many liters of carbon monoxide at STP are needed to react with 4.80 g of oxygen gas to produce carbon dioxide?
1
Calculate the number of liters of oxygen gas needed to produce 15.0 liters of dinitrogen trioxide. Assume all gases are at the same conditions of temperature and pressure.
Calculate the number of liters of oxygen gas needed to produce 15.0 liters of dinitrogen trioxide. Assume all gases are at the same conditions of temperature and pressure.
1
A volume of 7.5 L of hydrogen gas at STP was produced from the single-replacement reaction of zinc with nitric acid. Calculate the mass of zinc needed for this reaction.
A volume of 7.5 L of hydrogen gas at STP was produced from the single-replacement reaction of zinc with nitric acid. Calculate the mass of zinc needed for this reaction.