A student weighs out 0.568 g of KHP (molar mass = 204 g/mol) and titrates to the equivalence point with 36.78 mL of a stock NaOH solution. What is the concentration of the stock NaOH solution? KHP is an acid with one acidic proton.

Question

Quizplus · Accepted Answer

To find the concentration of the NaOH solution, first calculate the moles of KHP: 0.568 g / 204 g/mol = 0.00278 mol. Since KHP has one acidic proton, it reacts 1:1 with NaOH. Therefore, moles of NaOH = 0.00278 mol. The concentration of NaOH = moles/volume in liters = 0.00278 mol / 0.03678 L = 0.0757 M.

A Student Weighs Out 0