Potassium Hydrogen Phthalate (KHP)is Used to Standardize Sodium Hydroxide

question 34

Multiple Choice

Potassium hydrogen phthalate (KHP) is used to standardize sodium hydroxide.If 35.39 mL of NaOH(aq) is required to titrate 0.8246 g KHP to the equivalence point,what is the concentration of the NaOH(aq) ? (The molar mass of KHP = 204.2 g/mol) HC₈H₄O₄^-(aq) + OH^-(aq) C₈H₄O₄^2-(aq) + H₂O( )

• A) 0.02318 M
• B) 0.05705 M
• C) 0.0859 M
• D) 0.1141 M
• E) 0.1429 M

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