Potassium Hydrogen Phthalate Is Used as a Primary Standard in Finding

question 31

Multiple Choice

Potassium hydrogen phthalate is used as a primary standard in finding the concentration of a solution of sodium hydroxide by the reaction KHC₈H₄O₄ + NaOH → NaKC₈H₄O₄ + H₂O.What is the molarity of the base if 32.75 mL is required to titrate 1.732 g of the primary standard?

• A)0.5189 M
• B)0.2590 M
• C)1.732 M
• D)3.861 M
• E)3.275 M

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