Tirohia te whiti i raro nei, ka whakahoki i te pātai i muri i roto i te reo ano rite te whiti: Passage: Kei te whakarōpūtia te waihanga o te aspirin rite te tauhohenga esterification. maimoatanga waikawa Salicylic ki anhydride acetic, he hua waikawa, meinga he tauhohenga matū e tahuri rōpū hydroxyl waikawa salicylic ki te rōpū ester (R-OH → R-OCOCH3). hua tenei tukanga aspirin me waikawa acetic, e whakaaro te reira i te hua o tenei tauhohenga. Ko te nui iti o te waikawa sulfuric (me te waihoki waikawa phosphoric) e tata tonu whakamahia rite te pūkaha. whakamahia ana tēnei tikanga i roto i te taiwhanga whakaako paetahi. Pātai: He aha te waikawa sulfuric whakamahia hoki?
he pūkaha