Baking soda can be used as a fire extinguisher. When heated, it decomposes to carbon dioxide gas,

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Baking soda can be used as a fire extinguisher. When heated, it decomposes to carbon dioxide gas, which can smother a fire. If a sample of NaHCO3 (84.01 g/mol) produces 0.500 L of carbon dioxide gas at STP, what is the mass of the sample?

2 NaHCO3(s) NaCO3(s) + HO(g) + CO(g)

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