A buffer solution can be prepared by adding which of the following to of

CHEMISTRY · Single correct · A Level · Chemistry · Acids and bases · Acids and bases

Problem

A buffer solution can be prepared by adding which of the following to 50 cm350\ \text{cm}^3 of 0.10 mol dm−3 CH3COOH(aq)0.10\ \text{mol dm}^{-3}\ \mathrm{CH_3COOH(aq)}? I. 50 cm350\ \text{cm}^3 of 0.10 mol dm−3 NaCH3COO(aq)0.10\ \text{mol dm}^{-3}\ \mathrm{NaCH_3COO(aq)} II. 25 cm325\ \text{cm}^3 of 0.10 mol dm−3 NaOH(aq)0.10\ \text{mol dm}^{-3}\ \mathrm{NaOH(aq)} III. 50 cm350\ \text{cm}^3 of 0.10 mol dm−3 NaOH(aq)0.10\ \text{mol dm}^{-3}\ \mathrm{NaOH(aq)} (1) I only (2) I and II only (3) II and III only (4) I, II and III

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