Calcium hydroxide absorbs CO2 to form calcium carbonate and...

Calcium hydroxide absorbs $\mathrm{CO}_{2}$ to form calcium carbonate and $\mathrm{H}_{2} \mathrm{O}$. Calculate the maximum volume of $\mathrm{CO}_{2}$ at $20^{\circ} \mathrm{C}$ and 1 atm that $150 \mathrm{~mL}$ of $0.8 \mathrm{M}$ calcium hydroxide solution can absorb.

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Key Concepts

Molarity and Mole Calculation

Molarity is defined as the number of moles of a solute per liter of solution. In problems like these, understanding how to convert a given volume of a solution and its molarity to the number of moles is crucial. This conversion allows you to determine the starting quantity of a key reactant in a chemical reaction, which is necessary for subsequent stoichiometric calculations.

Reaction Stoichiometry

Reaction stoichiometry involves using the balanced chemical equation to understand the quantitative relationships between reactants and products. In this context, knowing the molar ratio between calcium hydroxide and carbon dioxide helps determine how many moles of CO2 can be absorbed by a given amount of calcium hydroxide.

Ideal Gas Law

The ideal gas law, expressed as PV = nRT, relates the pressure, volume, number of moles, and temperature of a gas. By employing this law, it is possible to convert the moles of CO2 (obtained from stoichiometric calculations) into the volume the gas would occupy under the specified conditions of temperature and pressure.

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