[Học Để Thi] New comment on Bảo toàn mol electron.

Vua Hài Kịch has left a new comment on your post "Bảo toàn mol electron":

Cho 1.35g hỗn hợp gồm Cu,Mg,Al tdụng HNO3 dư đc 1.12lít (đktc) NO và NO2 có klượng mol TB là 42.8. Tổng klượng muối nitrat?

Cho a gam hhợp FeO, CuO, Fe3O4 có số mol bằng nhau tdụng lượng vừa đủ 250ml dd HNO3, đun nóng đc 3.136 lít NO và NO2 có tỉ khối so với H2 bằng 20.143
1/ Tính a
2/ Nđộ mol dd HNO3

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Posted by Vua Hài Kịch to Học Để Thi at December 15, 2018 at 9:43 AM

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