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10 March, 19:53

What is the molarity of a solution of Cu2SO4 if 250.0 mL of solution contains 14.1 g of Cu2SO4?

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  1. 10 March, 19:57
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    Copper (I) compounds in aqueous solutions are unstable and disproportionate:

    Cu₂SO₄ = Cu + CuSO₄

    Necessary for dissolution of non-aqueous solvent.

    M (Cu₂SO₄) = 223.16 g/mol

    m (Cu₂SO₄) = 14.1 g

    v=0.250 L

    n (Cu₂SO₄) = m (Cu₂SO₄) / M (Cu₂SO₄)

    c=n (Cu₂SO₄) / v=m (Cu₂SO₄) / (vM (Cu₂SO₄))

    c=14.1 / (0.250*223.16) = 0.253 mol/L

    0.253 M
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