In the biochemistry lab, Harmeen got you to prepare a buffer by dissolving 4.147g of sodium acetate (CH3COONa, MW 82.03 g/mol) in one litre of 0.01075 M acetic acid (CH3COOH, MW 60.052 g/mol), using a volumetric flask. The ka for CH3COOH is 1.75 x 10-5.
a) What is the pH of the buffer you prepared? (3 MARKS)
b) You had 1.000 dm3 of this buffer in a beaker on the counter and a clumsy classmate spilt 10.00cm3 of 0.1125M NaOH into it. Calculate the pH of this resulting solution. (3 MARKS)
c) Did your solution act like a buffer? Explain why it did or didn't. (1 MARK)