Explain what is the mass percent of copper sulfate

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What is the mass percent of copper sulfate CuSo4 in a sample of cooper sulfate pentahydrate CuSO4*5H2O? what is the mass percent of CuSo in a sample thta is 74.4 %CuSO4*5H2O by mass

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Explain what is the mass percent of copper sulfate : What is the mass percent of copper sulfate CuSo4 in a sample of cooper sulfate pentahydrate CuSO4*5H2O
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