[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":

Cho 6,3(g) hỗn hợp X gồm Al và Mg hòa tan hoàn toàn trong 200g dung dịch HNO3 31,5% dư. Kết thúc phản ứng thu được dung dịch Y và 1,568 lít hỗn hợp khí Z gồm N2O và N2 có tỉ khối so với H2 là 19,71%. ( biết dưng dịch Y không có NH4NO3)
a) tính phần trăm khối lượng mỗi kim loại trong hỗn hợp ban đầu
b) tính nồng độ phần trăm các chất trong dung dịch Y
c) cho dung dịch Y tác dụng với lượng dư dung dịch NH3. Tính khối lượng kết tủa thu được

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Posted by Trang Ánh Nam to Học Để Thi at December 7, 2018 at 5:23 PM

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