問(wèn)答題阿司匹林及乙酰水楊酸其含量可用酸堿滴定法測(cè)定,稱取試樣0.2500g,準(zhǔn)確加入50.00ml0.1020mol/l的NaOH溶液煮沸、冷卻后,再以C=0.05264mol/lH2SO4的溶液23.75ml回滴過(guò)量的NaOH。以酚酞指示終點(diǎn),求試樣中乙酰水楊酸的質(zhì)量分?jǐn)?shù)。已知MHOOCC6H4OCOCH3=180.16g/molHOOCC6H4OCOCH3→NaOOCC6H4ONa

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