Copper(II) sulfate pentahydrate, CuSO₄·5H₂O, is used as a fungicide and algicide. Calculate the mass of oxygen in 1.000 mol of CuSO₄·5H₂O. A)249.7 g B)144.0 g C)96.00 g D)80.00 g E)64.00 g

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Quizplus · Accepted Answer

The formula for copper(II) sulfate pentahydrate is CuSO4·5H2O. This means there are 4 oxygen atoms in the sulfate ion (SO4) and 5 water molecules, each containing 1 oxygen atom, for a total of 9 oxygen atoms per formula unit. The molar mass of oxygen is 16.00 g/mol, so the mass of oxygen in 1 mole of CuSO4·5H2O is 9 mol * 16.00 g/mol = 144.0 g.

Copper(II) Sulfate Pentahydrate, CuSO4·5H2O, Is Used as a Fungicide and Algicide

Copper(II) Sulfate Pentahydrate, CuSO₄·5H₂O, Is Used as a Fungicide and Algicide