C
camtuyen0000
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
cho hh C2H2.C3H6, va H2 co ti khoi doi voi H2 la 15 duoc chua trong binh co dung tich 2,24l.cho mot it Ni(the tich o dang ke) vao binh roi nug nong mot thoi gian, sau do dan hh khi Y thu duoc qua binh chua dd Br2 thu dc 0.56 hh khi Z co ti khoi so voi H2 la. khoi luong binh Br2 tang len la bao nhiu?