A student plans to prepare 1.00 L of solution by mixing one of the following pairs of reagents. In which case will the final solution function as a buffer?
a) 0.10mol CH3COOH and 0.10mol NaOH
b) 0.05mol CH3COOH and 0.10mol NaOH
c) 0.10mol CH3COOH and 0.05mol NaOH
d) 0.10mol NH3 and 0.20mol HCl