Calculate the relative molecular weight of copper sulfate CuSO4.

The molar mass of complex molecules is defined as the sum of the molar masses of the elements that make up its composition.
In this case, we have one copper (Cu), one sulfur (S) and four oxygen (O).
The molar mass of copper Cu = 29, sulfur S = 16, oxygen O = 8, we summarize, we get:
29 + 16 + 4 * 8 = 77
Answer: The relative molar mass of CuSO4 is 77



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