1. Sodium Reacts with Oxygen Gas to Produce Sodium Oxide

Applied Chemistry Section 8.2 Mass Calculations for Reactions

1. Sodium reacts with oxygen gas to produce sodium oxide.

a. How many grams of sodium oxide are produced when 2.50 moles of sodium react?

b. If you have 18.0 g sodium, how many grams of oxygen gas are required for reaction?

c. How many grams of oxygen gas are needed in a reaction that produces 75.0 g sodium oxide?

2. Ammonia (NH3) and oxygen gas react to form nitrogen gas and water.

a. How many grams of oxygen gas are needed to react with 8.00 moles of ammonia?

b. How many grams of nitrogen gas can be produced when 6.50 g of oxygen gas reacts?

c. How many grams of water are formed from the reaction of 34.0 g of ammonia? 3. Nitrogen dioxide and water react to produce nitric acid (HNO3) and nitrogen monoxide.

a. How many grams of water are required to react with 28.0 g of nitrogen dioxide?

b. How many grams of nitrogen monoxide are obtained from 15.8 g of nitrogen dioxide?

c. How many grams of nitric acid are produced from 8.25 g nitrogen dioxide?

4. When the ore lead(II) sulfide burns in oxygen gas, the products are lead(II) oxide and sulfur dioxide.

a. How many grams of oxygen gas are required to react with 0.125 moles of lead(II) sulfide?

b. How many grams of sulfur dioxide can be produced when 65.0 g lead(II)sulfide react?

c. How many grams of lead(II) sulfide are used to produce 128 g of lead(II) oxide?