What is the total volume of hydrogen gas and oxygen gas that can be produced fro

Question

What is the total volume of hydrogen gas and oxygen gas that can be produced from the thermal decomposition of 0.340 grams of H2O2 at 700°C and 755 mm Hg according to the chemical equation shown below?

What is the total volume of hydrogen gas and oxygen gas that can be produced from the thermal decomposition of 0.340 grams of H2O2 at 700°C and 755 mm Hg according to the chemical equation shown below?
H2O2(l) H2(g) + O2(g)?

What is the total volume of hydrogen gas and oxygen gas that can be produced from the thermal decomposition of 0.340 grams of H2O2 at 700°C and 755 mm Hg according to the chemical equation shown below?
H2O2(l) H2(g) + O2(g)?

1210 mL

1210 mL

Explanation / Answer

mol H2O2= 0.34g/34g/mol= 0.01 mol

1 mol H2O2 -------- 1 mol H2

0.01 mol H2O2 -------- x= 0.01 mol H2

V= 0.01mol x 0.082 L.atm/mol.K x 973K/(755mmHg/760mmHg x1atm) = 0.804 L ---> 804mL

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