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An aqueous solution of calcium chloride contains 2 g of calcium chloride (molar mass 110.98 g mol-1) in 100 ml. Calculate the concentration of chloride ion in the solution

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  • Chemistery -

    How many mols in 2 g CaCl2?
    2 g x (110.98 g CaCl2/1 mol CaCl2) = ?? mols
    M = # mols/L = ??mols/0.100 L = xx molar.

    There are two mols Cl^- per 1 mol CaCl2; therefore, (Cl^-) is twice that for CaCl2.

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