When heated, KClO3 forms KCl and O2. When a sample of KClO3 is heated, 226 mL of gas with...

When heated, KClO3 forms KCl and O2. When a sample of KClO3 is heated, 226 mL of gas with a pressure of 744 mmHg is collected over water at 26 °C. At 26 °C, the vapor pressure of water is 25 mmHg.

2KClO3(s) 2KCl(s) + 3O2(g)

a. What is the pressure, in millimeters of mercury, of the dry O2 gas?

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b. How many moles of O2 were produced?

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c. How many grams of KClO3 were reacted?