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【简答题】
取乙酰水杨酸1.5040g,准确加入氢氧化钠滴定液(0.5mol/L)50.0ml,煮沸15分钟,放以酚酞为指示剂,用硫酸滴定液(0.25mol/L,F=1.004)滴定,并将滴定结果用空白实验校正,每1ml氢氧化钠滴定液(0.5mol/L)相当于45.04mg乙酰水杨酸。样品消耗硫酸滴定液(0.25mol/L,F=1.004)17.05ml,空白消耗49.95ml,酰水杨酸百分含量?
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