Reactions of acids

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Question 34

Medium

An analyst in a laboratory performs a titration to determine the concentration of a sodium carbonate ( $Na2CO3\text{Na}_2\text{CO}_3$ ) solution.

The analyst measures $cm325.0\text{ cm}^3$ of the sodium carbonate solution with a concentration of $g/dm34.24\text{ g/dm}^3$ . Calculate the mass of sodium carbonate 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 sodium carbonate:

Trial 1: $cm324.15\text{ cm}^3$
Trial 2: $cm321.20\text{ cm}^3$
Trial 3: $cm324.25\text{ cm}^3$
Trial 4: $cm324.20\text{ cm}^3$

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

[3]

Reactions of acids

Question 34

Reactions of acids Questions

Reactions of acids

Question 34

Reactions of acids Questions