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219725339297857
2 năm trước
đốt cháy hoàn toàn 2,7g chất hữu cơ X cần dùng vừa đúng 2016ml khí O2(đkc) và thu được 3,96g khí cacbonic và một lượng nước a) xác định CTN của X b) Xác định CTPT của X biết hóa hơi 6g X có thể tích là 2240ml khí ở đkc
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