You will determine the value of $$\(\mathbf{x}\)$$ in hydrated sodium carbonate, $$\(\mathrm{Na}_{2} \mathrm{CO}_{3} \cdot \mathbf{x H}_{2} \mathrm{O}\)$$. $$\(\mathbf{x}\)$$ is not an integer. You will carry out two methods to determine the value of $$\(\mathbf{x}\)$$. Each method involves sodium carbonate reacting with excess hydrochloric acid to release carbon dioxide. $$\[ \mathrm{Na}_{2} \mathrm{CO}_{3} \cdot x_{2} \mathrm{O}(\mathrm{s})+2 \mathrm{HCl}(\mathrm{aq}) \rightarrow 2 \mathrm{NaCl}(\mathrm{aq})+\mathrm{CO}_{2}(\mathrm{~g})+\mathbf{x H}_{2} \mathrm{O}(\mathrm{I}) \]$$ A student suggests that it would be better to use hot water in the tub. State the effect, if any, that using hot water would have on the value of $$\(\mathbf{x}\)$$ calculated. ....................................................................................................................................... . .................................................................................................................................

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