Calculate the final pH of the following solutions:
a) 65.0 ml of 0.105 M HCl and 100 ml of 0.118 M sodium acetate solutions are mixed.
b) 100 ml of a 0.109 M acetic acid and 100 ml of a 0.123 ml NaOH solution are mixed.
pH = pKa = log (salt/acid)
The Attempt at a Solution
for part a) i found the no.of moles of salt sodium aceate
0.118 mol/L x 0.1 L = 0.0118 mol
then after that I don't know how to fing the concentration of acid ... and if I know I can do the rest of the part a) using stoichiometric caluclations ... please help me with it
for part b) the same problem
I need immediate help beause this is due in 5 hours ... please do something about it
Thanks in advance