[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":

Nung m gam bột sắt trong oxi không khí thu được 3g hỗn hợp chất rắn X gồm Fe2O3 , Fe3O4 . Hòa tan X trong dd HNO3 dư thấy thoát ra 0,56 lit NO (đkc , sản phẩm khử duy nhất) . Giá trị của m là?

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Posted by Vua Hài Kịch to Học Để Thi at December 15, 2018 at 9:38 AM

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