Four grams of copper chloride on analysis was found to contain 1·890 g of copper (Cu) and 2·110 g of chlorine (Cl). What is the empirical formula of copper chloride?

Solution

(i) To calculate the percentage of copper (Cu) and chlorine (Cl):

Percentage space of space Cu space in space copper space chloride space equals space fraction numerator 1.890 over denominator 4 end fraction cross times 100 equals space 47.3 Percentage space of space Cl space in space copper space chloride space equals space fraction numerator 2.110 over denominator 4 end fraction cross times space 100 space equals space 52.7

(ii) To calculate the empirical formula of the compound.

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