Determine the pH of each of the following solutions.
(a) 0.19 M NH₄Cl
(b) 0.20 M NaC₂H₃O₂
(c) 0.16 M NaCl
Express your answer to two decimal places.
(a) 5.14
(b) 8.26
(c) 7.00
(d) 6.44