問答題稱取水楊酸鈉樣品0.1347g,用乙酸酐:冰醋酸(1:4)10ml溶解,0.1017mol/LHClO4標(biāo)準(zhǔn)溶液滴定,結(jié)晶紫為指示劑,消耗HClO48.195ml,計(jì)算水楊酸鈉的質(zhì)量分?jǐn)?shù)(Mc7HsO3Na=160.10g/mol)

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