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In: Chemistry

A hydrated nickel chloride compound was found to contain 24.69% Ni, 29.83% Cl, and 45.48% water....

A hydrated nickel chloride compound was found to contain 24.69% Ni, 29.83% Cl, and 45.48% water. Determine the empirical formula of this hydrated compound

Solutions

Expert Solution

   element               %                     A.wt               relative number           simple ratio

    Ni                     24.69                 59                  24.69/59 = 0.418           0.418/0.418   = 1

    Cl                   29.83                  35.5                29.83/35.5 = 0.84         0.84/0.418      = 2

    H2O              45.48                  18                    45.48/18    = 2.53           2.53/0.418      = 6

                 empirical formula   = NiCl2. 6H2O


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