What mass of KClO₃ must be decomposed to produce 126 L of oxygen gas at 133°C and 0.880 atm? (The other reaction product is solid KCl.) A)24.6 g B)70.8 g C)272 g D)408 g E)612 g

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Using the ideal gas law, calculate moles of O2: PV = nRT. Convert temperature to Kelvin and solve for n. Then use stoichiometry from the balanced equation 2 KClO3 → 2 KCl + 3 O2 to find moles of KClO3. Finally, convert moles of KClO3 to grams.

What Mass of KClO3 Must Be Decomposed to Produce 126

What Mass of KClO₃ Must Be Decomposed to Produce 126