Hỗn hợp E gồm chất X (

- Hướng dẫn giải

$$\begin{gathered} H_{2}N-CH\left(C{H}_3\right)-COON{H}_4 + NaOH \to H_{2}N-CH\left(C{H}_3\right)-COONa + N{H}_3 + H_{2}O \\ Mol: x \to x \to x \\ Gly-Ala + 2NaOH \to H_{2}N-C{H}_2-COONa + H_{2}N-CH\left(C{H}_3\right)-COONa + H_{2}O \\ Mol: y \to 2y \to y \to y \end{gathered}$$