consider the following mixtures. in each case either calculate the pH if the resulting solution is a buffer solution or state why the solution does not form a buffer.
a) 25.0 mL of 0.100 M CH3COOH and 25.0 mL of 0.200 M NaCH3COO.
b) 25.0 mL of 0.200 M CH3COOH and 25.0 mL of 0.100 M Ba(OH)2
c) 25.0 mL of 0.200 M CH3COOH and 25.0 mL of 0.100 M HCl
d) 25.0 mL of 0.200 M CH3COOH and 25.0 mL of o.100 M NaOH