A student prepares a buffer solution by combining \(100.0\text{ mL}\) of \(0.50\text{ M }\text{CH}_3\text{COOH(aq)}\) and \(100.0\text{ mL}\) of \(0.10\text{ M }\text{CH}_3\text{COONa(aq)}\). To this solution, the student adds \(0.010\text{ mol}\) of solid \(\text{NaOH}\), stirring until it dissolves completely with negligible change in total volume. Given that the \(\text{p}K_a\) of \(\text{CH}_3\text{COOH}\) is \(4.74\) and \(\log_{10}(2) \approx 0.30\), which of the following is the \(\text{pH}\) of the resulting buffer solution?