[Học Để Thi] New comment on Tuyển tập những bài tập Hóa Học Hay.

Trang Ánh Nam has left a new comment on your post "Tuyển tập những bài tập Hóa Học Hay":

1. Cho dd HNO3 loãng vào một cốc thủy tinh có đựng 5,6g Fe và 9,6g Cu. Khuấy đều để p/ứng xảy ra hoàn toàn có 3,136l khí NO thoát ra(đktc), còn lại m g chất k tan. Tìm m?

2. Cho m g bột Fe vào 800ml dd hỗn hợp gồm Cu(NO3)2 và H2SO4 0,25M. Sau khi các p/ứng xảy ra hoàn toàn thu đc 0,6m g hỗn hợp bột KL và V lít khí NO (sản phẩm khử duy nhất, đktc). Tìm m và V?

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Posted by Trang Ánh Nam to Học Để Thi at December 7, 2018 at 2:19 PM

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