HOA TAN HOAN TOAN 25,2 GAM H6N HQP CHIT R�N X G6M MOH VA M2CO3 (M L...

2) Hoa tan hoan toan 25,2 gam h6n hqp chit r�n X g6m MOH va M

CO

(M la kim lo�i)

vao nu6c thu duqc 200 ml dung dich Y. Cho nit tir tir dung djch HCl loang t6i du vao 200 ml dung

djch Y, k�t qua sf> mol khi thu duqc theo sf> mol HCl cho vao duqc biSu di�n theo d6 thi sau:

---

0�

³

Sb mol HCI

a) Vi€t cac phan ung h6a h9c xay ra va xac djnh kim lo�i M.

b) N�u cho tir tir d�n h�t 200 ml dung djch Y tren vao 300 ml dung dich HCI 1,2M, sau khi

phan irng k�t thuc thu duqc tf>i da V lit khi ( a dktc ). Bi�t khi sinh ra khong tan, khong tac d\lng v6i

nu&c, xac djnh gia ttj cua V.

Can V. (2,0 iliim):