阿司匹林及乙酰水杨酸其含量可用酸碱滴定法测定,称取试样0.2500g,准确加入50.00ml0.1020mol/l的NaOH溶液煮沸、冷却后,再以C=0.05264mol/lH2SO4的溶液23.75ml回滴过量的NaOH。以酚酞指示终点,求试样中乙酰水杨酸的质量分数。已知MHOOCC6H4OCOCH3=180.16g/molHOOCC6H4OCOCH3→NaOOCC6H4ONa
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答案解析:有
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阿司匹林及乙酰水杨酸其含量可用酸碱滴定法测定,称取试样0.2500g,准确加入50.00ml0.1020mol/l的NaOH溶液煮沸、冷却后,再以C=0.05264mol/lH2SO4的溶液23.75ml回滴过量的NaOH。以酚酞指示终点,求试样中乙酰水杨酸的质量分数。已知MHOOCC6H4OCOCH3=180.16g/molHOOCC6H4OCOCH3→NaOOCC6H4ONa
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