Chemistry;HELP

Volume Problems

Answer the following questions. Scan and upload your questions and answers to your student section labeled Volume Volume Problems.

Identify the following chemical equations by type.
1. If an electric discharge produces 500 cm3 of ozone (O3), how many cm3 of oxygen (O2) are required?

3O2(g) ---> 2O3(g)




2. When 2.75 dm3 of O2 react with an excess of glucose (C6H12O2), according to the reaction below, what volume of carbon dioxide will be produced?

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



3. If an excess of nitrogen gas reacts with 25.0 L of hydrogen gas, according to the reaction below, how many L of ammonia will be produced?

N2(g) + 3H2(g) ---> 2NH3(g)


4. How many cm3 of oxygen would be required to react completely with 250.0 cm3 of hydrogen gas according to the reaction below?

2H2(g) + O2(g) ---> 2H2O(g)

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  1. Do you have any ideas?
    For #1. you can treat volumes of gases as if they were mols; therefore,
    volume O2 required = 500 x (3 mols O2/2 mols O2) = 500 x 3/2 = ?

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