When solid calcium carbonate is reacted with aqueous hydrochloric acid, the products of the reaction include aqueous calcium chloride, liquid water, and gaseous carbon dioxide. Calculate the volume of CO2 gas (in L) collected over water at 25.0 °C when 35.5 g of calcium carbonate is added to excess hydrochloric acid if the total pressure is 911.0 mmHg. The vapor pressure of water at 25.0 °C is 23.8 mmHg.

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.