Chemistry

The concentration of a certain sodium hydroxide solution was determined by using the solution to titrate a sample of potassium hydrogen phthalate (abbreviated KHP). KHP is an acid with one acidic hydrogen and a molar mass of 204.22 g/mol. In the titration 34.67 mL of the sodium hydroxide solution was reuired to react with 0.1082. g KHP. Calculate the molarity of the sodium hydroxide.

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  1. NaOH + KHP ==> NaKP + H2O
    Note that 1 mol NaOH = 1 mol KPH.

    mols KHP = grams/molar mass
    mols NaOH = mols KHP.
    M NaOH = mols NaOH/L NaOH. You now mols and L, solve for M

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  2. Thank you Dr. Bob

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  3. .4407 M

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