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根据题目C4H10O相对分子质量是74,而有机酸分子质量比醇大28,则分子质量是102,有COOH,分子式是C4H9COOH。醇有1 CH3- CH2- CH2-CH2-OH; 2 CH3- CH2- CH2(CH3)-OH;
3 CH3- CH2(CH3)- CH2 –OH; 4 CH3 -CH2(CH3)2-OH; 四种,同理酸也有四种:1 CH3- CH2- CH2-CH2-COOH; 2 CH3- CH2- CH2(CH3)-COOH; 3 CH3- CH2(CH3)- CH2 –COOH; 4 CH3 -CH2(CH3)2-COOH 所以1种醇可以和1,2,3,4酸反应生成四种酯 ,所以有16种酯