Chemistry, 19.06.2021 15:30, irenecupcake3467

Cho 8,4g Fe tan hết trong dung dịch H2SO4 đặc và nóng, thu được khí SO2 và dung dịch X. Cô cạn dung dịch X thu được 26,4 g muối khana. Tính toán khối lượng H2SO4 đã phản hồi. b. Cho toàn bộ lượng khí SO2 ở trên tác dụng với dung dịch KOH 275ml, sau phản ứng thu được dung dịch y. Tính tan chất lượng khối trong Y dung dịch.

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