A-Level Edexcel Chemistry Presenting Data

Review A-Level Edexcel Chemistry presenting data through the available practical-table evidence, focusing on completing required numerical entries accurately.

Exam points

complete chemistry practical data tables with all required numerical values correct

[Maximum number: 1]

A student carried out an experiment to identify the metal M in the hydrated carbonate $\mathrm{M}_{2} \mathrm{CO}_{3} \cdot 10 \mathrm{H}_{2} \mathrm{O}$ . A solution was made by dissolving 3.56 g of the hydrated metal carbonate in distilled water and making the volume up to $250.0 \mathrm{~cm}^{3}$ in a volumetric flask. $25.0 \mathrm{~cm}^{3}$ of this solution was placed in a conical flask and titrated with $0.100 \mathrm{~mol} \mathrm{dm}^{-3}$ of hydrochloric acid. The equation for the reaction is

\mathrm{M}_{2} \mathrm{CO}_{3}(\mathrm{aq})+2 \mathrm{HCl}(\mathrm{aq}) \rightarrow 2 \mathrm{MCl}(\mathrm{aq})+\mathrm{H}_{2} \mathrm{O}(\mathrm{l})+\mathrm{CO}_{2}(\mathrm{~g})

The results of the titration are shown.

Table for Question 3.P3—Presenting data question 1 — Edexcel A-Level Chemistry AS

Complete the table.

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3.P3—Presenting data question 1