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thihuong10101984
2 năm trước
Đốt cháy hoàn toàn 5,6 lít hỗn hợp M gồm H2 và CnH2n-2 cần dùng vừa đủ 10,64 lít O2 (đktc). Sản phẩm cháy cho đi qua bình đựng lượng dư H2SO4 đặc, thấy khối lượng bình tăng 6,3 gam. Xác định CTPT của hidrocacbon trong X.
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