What volume of CO₂ at STP is evolved when 6.0 g of ethanoic acid reacts with excess sodium hydrogencarbonate (CH₃COOH = 60)?
Correct answer C. 2.24 dm³
Explanation
6.0 g of acid is 0.1 mol. CH₃COOH + NaHCO₃ → CH₃COONa + H₂O + CO₂ gives 0.1 mol CO₂, which is 2.24 dm³ at STP.
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