***PLEASE ONLY ANSWER IF 100% CONFIDENT IN THE SOLUTION***
Calculate the pH of all solutions below: pKa of acetic acid = 4.75.
Relevant information: stock acetic acid concentration = 1.0146M, stock sodium acetate concentration = 1.0323M, sodium acetate is formed when acetic acid reacts with NaOH, acetic acid can dissociate into H+ and CH3COO-, the buffer solution is made by mixing 100mL each of the acetic acid and sodium acetate together (undiluted) and then to make 50% buffer, add the original buffer to 100mL DI water, then for 25% buffer, add some 50% buffer to 100mL DI water.
a) acetic acid
b) sodium acetate
c) undiluted buffer
d) 50% buffer
e) 25% buffer