4.2 Reactions of acids

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Question 1

A student is performing a titration to analyze a solution of potassium hydroxide ( $KOH\text{KOH}$ ).

The student measures $cm320.0\text{ cm}^3$ of potassium hydroxide solution with a concentration of $g/dm35.60\text{ g/dm}^3$ . Calculate the mass of potassium hydroxide in this sample. Use the conversion: $cm31\text{ dm}^3 = 1000\text{ cm}^3$ .

[2]

During the titration, the following volumes of dilute hydrochloric acid were recorded to neutralize the potassium hydroxide:

Trial 1: $cm318.2\text{ cm}^3$
Trial 2: $cm318.4\text{ cm}^3$
Trial 3: $cm322.1\text{ cm}^3$
Trial 4: $cm318.3\text{ cm}^3$

Identify the anomalous trial and calculate the mean volume of acid used, using only the concordant results.

[3]

A student is performing a titration to analyze a solution of potassium hydroxide ( $KOH\text{KOH}$ ).

[2]

During the titration, the following volumes of dilute hydrochloric acid were recorded to neutralize the potassium hydroxide:

Trial 1: $cm318.2\text{ cm}^3$
Trial 2: $cm318.4\text{ cm}^3$
Trial 3: $cm322.1\text{ cm}^3$
Trial 4: $cm318.3\text{ cm}^3$

Identify the anomalous trial and calculate the mean volume of acid used, using only the concordant results.

4.2 Reactions of acids

Question 1

Markscheme

4.2 Reactions of acids

Question 1

Markscheme

4.2 Reactions of acids

Question 1

4.2 Reactions of acids Questions

4.2 Reactions of acids

Question 1

4.2 Reactions of acids Questions