㊙️<解釋weak acid的答題框架> 1. If xx acid (be specific) completely dissolves in water, the expected [H+] = xx M, thus expected pH = -log[H+] = xx M 2. Actual pH of xx is higher than theoretical pH of xx. xx can only partially ionize when dissolved in water. Ref past paper: 2013,2019,2023!! 有冇其他題見到好亂想我講？