What is the concentration of a sodium hydroxide solution if 0.2033 g of potassium hydrogen phthalate (KHP- MW 204.22 g/mol) requires 10.40 mL of NaOH solution to reach the phenolphthalein end point? Answer with three decimal places.
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The concentration of a certain sodium hydroxide solution was determined by using the solution to titrate a sample of potassium hydrogen phthalate (abbreviated as 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 required to react with 0.1082 g KHP. Calculate the molarity of the sodium hydroxide.
Dominique Jan T.
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