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Chemistry - Solution Stoichiometry

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A piece of nickel is placed in a beaker with 350 mL of copper (II) sulfate. Calculate the concentration of the copper (II) sulfate solution.

Initial mass of nickel - 15.5 g
Final mass of nickel - 11.4 g

What do i do with the final and initial masses of nickel?

  • Chemistry - Solution Stoichiometry -

    CuSO4(aq) + Ni ==> NiSO4(aq) + Cu
    mass Ni used = 15.5 - 11.4 = ??g Ni.

    Convert mass Ni to mols Ni. mols = grams/molar mass.

    Mols Ni = mols Cu (from the equation which tells you 1 mol CuSO4 = 1 mol Ni).

    mols Cu = mols CuSO4 (since 1 mol Cu is in 1 mol CuSO4).
    molarity CuSO4 = mols/L.

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