Question 1

Paper 2Easy3 marks

A student uses a calibrated pH meter to measure an aqueous ethanoic acid solution. Figure 1 shows the meter reading.

pH 3.40aqueous ethanoic acid
(a)

State the pH of the solution shown in Figure 1.

[1]
(b)

Calculate the hydrogen ion concentration, [H⁺], in the solution. Give your answer in mol dm⁻³ to two significant figures.

[2]

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