Ionic Equilibrum

What is \(\mathrm{pH}\) of solution containing \(50 \mathrm{~mL}\) each of \(0.1 \mathrm{~M}\) sodium acetate and \(0.01 \mathrm{~M}\) acetic acid? \(\left(\mathrm{pK}_{\mathrm{a}} \mathrm{CH}_3 \mathrm{COOH}=4.50\right)\)