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nhung2852005
2 năm trước
hỗn hợp A gồm 3 khí H2, H2S, SO2 có tỷ lệ mol tương ứng là 3:2:5. Trộn A với O2 dư trong bình kín xúc tác V2O5 rồi đốt cháy hoàn toàn A, làm lạnh hỗn hợp sau phản ứng chỉ thu được 1 chất Y duy nhất. xác định công thức của Y Có 0,2 mol Y tác dụng vừa hết với V ml dd NaOH 0,5M tính V
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