M
mihuong.96@gmail.com


hh X gom hai amin no dc mach ho A,B( MA<MB) co so ntu cacbon =4 so mol cua A >nB . de trung hoa 1,36 hhX can 300 ml (chua HCL,H2S04) co pH=1 ct A,B la cac pan giai gium minh vs minh giai ko za