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tudethuong
2 năm trước
1)một lít nước ở 20°c hòa tan tối đa 2,5 lít khí hidro sunfua (đktc). nồng độ % của h2s trong dung dịch thu được xấp xỉ là 2)Khí CO2 lẫn tạp chất khí H2S làm thế nào để loại bỏ tạp chất ra khỏi hh
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