One commercial method used to peel potatoes is to soak them ina solution of NaOH

Question

One commercial method used to peel potatoes is to soak them ina solution of NaOH for a short time, remove them fron the NaOH, andspray off the peel. The NaOH is analyzed periodically. In one suchanalysis, 45.7mL of 0.5M H2SO4 is required toneutralize a 20.0mL sample of NaOH solution. What is theconcentration of the NaOH solution?
          please showwork! One commercial method used to peel potatoes is to soak them ina solution of NaOH for a short time, remove them fron the NaOH, andspray off the peel. The NaOH is analyzed periodically. In one suchanalysis, 45.7mL of 0.5M H2SO4 is required toneutralize a 20.0mL sample of NaOH solution. What is theconcentration of the NaOH solution?
          please showwork!

Explanation / Answer

write the rxn/bce: H2SO4 + NaOH --> NaSO4 + HOH It is balanced, and a simple neutralization so we can goahead... There are n=cV mols of acid used -->n (acid) = 0.5M * 0.0457L = 0.02285 mols --> n (acid) = n (base) because it is a complete/simpleneutralization -->therefore n (NaOH) = 0.02285 mols. -->the C (NaOH) = n/V You are given V and we have n C (NaOH) = 0.02285mols/0.020 L = 1.125 M = 1.13 M to three sigfigs

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