Q1. To calculate the percentage of calcium carbonate in a sample of limestone, a chemist dissolved 0.650g in 50mL of 0.130M HCI, boiled the mixture gently to ensure complete reaction (to expel all Carbon dioxide), and then titrated the excess HCI with 21.1mL of 0.095M NaOH. Calculate the mass of calcium carbonate in the sample and hence the percentage of calcium carbonate.
