CaCO3 in egg shells
This practical uses the technique of 'back titration' to determine the percentage of calcium carbonate present in the shells of eggs. It covers both applying techniques to acid-base and redox titration (Tools 1 ) and using the mole ratio of an equation to determine the masses and/or volumes of reactants and products and the concentrations of reactants and products for reactions occurring in solution (R2.1.2). Crabs...