A sample of limestone weighing 1.005 grams is dissolved in 75.00 mL of 0.250 M hydrochloric acid. The following reaction occurs: CaCO3(s) + 2 H (aq) = Ca2+(aq) + CO2(g) + H2O(l) It is found that 19.26 mL of 0.150 M NaOH is required to titrate the excess HCl left after the reaction with the limestone. What is the mass percent of CaCO3 in the limestone?

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Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.