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A sample of potassium hydrogen oxalate, KHC204, weighing 0.717 g, was dissolved in water and titrated with 18.47 mL of an NaOH solution. Calculate the molarity of the NaOH solution.

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    KHC2O4 + NaOH ==> NaKC2O4 + H2O
    mols KHC2O4 = grams/molar mass = ?
    mols NaOH = mols KHC2O4(see the coefficients in the balanced equation).
    Then M NaOH = mols NaOH/L NaOH and solve for M

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