Question

How would the following changes in procedure affect the final computed alue of the quilibrium constant, Ksp? Would the value increase, decrease, or remain unchanged? Provide a brief justification of each answer. (What we did in this experiment was basically titrate NaOH into a filtered saturated solution of KHT with phenolphthalein as the indicator until endpoint)
a. The student titrated a 25.00 mL sample of the saturated KHT solution instead of 20.00 mL sample specified in experiment
b. The student uses methyl red as the indicator while titrating the saturated KHT solution
c. During the filtration of the portion of saturated KHT solution, the student used water to rinse some of the KHT solution through the filter paper