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An experiment requires the measurement of a volume of carbon dioxide gas formed by the reaction between potassium carbonate solid and hydrochloric acid. The equation is:
|
K2CO3(s) + 2HCl(aq) ⇒ 2KCl(aq) + H2O(l) + CO2(g) |
It is proposed to collect the gas over water in an inverted 250 cm3 measuring cylinder. Suggest appropriate quantities of potassium carbonate and acid for this experiment.