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2 năm trước
Cho hỗn hợp khí (A) gồm SO2 và O2 có tỉ khối so với H2 là 26 vào bình kín có một ít V2O5 làm xúc tác. Nung nóng hỗn hợp để phản ứng xảy ra. Hãy tính tỉ khối của hỗn hợp khí sau phản ứng trong trường hợp a/ H% = 60% b/ H % = 100% Cho rằng ở điều kiện thí nghiệm SO3 ở thể khí. ( lưu ý ở điều kiện bình thường SO3 là chất rắn)
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