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15.00mL sample of a solution of H2SO4 of unknown concentration was titrated with 0.3200 N NaOH. The titration required 21.30mL of the base.

What was the normality of the acid solution?
what was the molarity of the acid solution?

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  1. H2SO4 + 2NaOH ==> Na2SO4 + 2H2O
    mols NaOH = M x L = ? (Note: the M and N of NaOH are the same.)
    Using the coefficients in the balanced equation, convert mols NaOH to mols H2SO4. That will be mols H2SO4 = 1/2 mols NaOH.
    Then M H2SO4 = mols H2SO4/L H2SO4 = ?

    To convert to N,
    N = M*#H titrated. #H in this case is 2 so N = M*2

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