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One commercial method used to peel potatoes is to soak them in a solution of NaOH for a short time, remove them from the NaOH, and spray off the peel. The concentration of NaOH is normally in the range of 3 to 6 M. The NaOH is analyzed periodically. In one such analysis, 45.7 mL of 0.500 M H2SO4 is required to react completely with a 12.5 mL sample of NaOH solution. What is the concentration of the NaOH solution?

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3 answers
  1. 2NaOH + H2SO4 ==> Na2SO4 + 2H2O

    moles H2SO4 = M x L
    moles NaOH (from the equation) = 1/2 moles H2SO4
    M NaOH = moles NaOH/L NaOH = ??

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  2. 1.41

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  3. 4.78

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