To a 25 00 mL volumetric flask a lab technician adds a 0 175

Last updated: 4/27/2023

To a 25 00 mL volumetric flask a lab technician adds a 0 175 g sample of a weak monoprotic acid HA and dilutes to the mark with distilled water The technician then titrates this weak acid solution with 0 0889 M KOH She reaches the endpoint after adding 48 83 mL of the KOH solution Determine the number of moles of the weak acid in the solution moles of weak acid Determine the molar mass of the weak acid molar mass pK 4 34 X10 3 5 94 Incorrect 40 31 After the technician adds 18 23 mL of the KOH solution the pH of the mixture is 5 51 Determine the pK of the weak acid mol g mol