A 25.0 mL sample of 1.50 M HCl reacts completely with excess Na2CO3 according to the…

CHEMISTRY · Single correct · A Level · Chemistry · Amount of substance · Amount of substance

Problem

A 25.0 mL sample of 1.50 M HCl reacts completely with excess Na2CO3 according to the equation 2 HCl(aq) + Na2CO3(s) → 2 NaCl(aq) + H2O(l) + CO2(g) The CO2(g) is collected at 298 K and 755 mmHg. What volume of CO2 is produced, in millilitres? (Assume ideal-gas behaviour.) (a) 9.25×102 mL9.25 \times 10^{2}\ \text{mL} (b) 2.32×102 mL2.32 \times 10^{2}\ \text{mL} (c) 4.63×102 mL4.63 \times 10^{2}\ \text{mL} (d) 4.20×102 mL4.20 \times 10^{2}\ \text{mL}

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