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ngonguyentruongduy145
2 năm trước
Chia 14g hh X gồm H2S và H2 làm hai phần Phần 1. Tác dụng với dd NaOH dư.đem dd thu dc đi cô cạn thì thu dc 23,4g muối Phần 2. Đốt hoàn toàn bằng khí Oxi rồi cko sp cháy qua dd Ca(OH)2 dư thấy kl dd giảm 2,9g do với ban đầu và thu dc mg kết tủa Tính phần trăm về kl các chất trong hh X và tinh m các mod vào giải giúp với ạ
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