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標題: [Bio] Dependent variable of vitamin C experiment [打印本頁]

作者: suking2014    時間: 2016-9-29 10:29 PM     標題: Dependent variable of vitamin C experiment

there is an experiment requires us to find out which brands of juice contain the highest amount of vitamin C
the method: adding DCPIP solution to different brands of juice (fixed volume) until the juice become colorless



so i wrote the dependent variable is: the volume of DCPIP solution added,

but the teacher said i was wrong

the correct ans should be: vitamin C content

anyone knows the reasons behind???

[ 本帖最後由 suking2014 於 2016-9-29 10:31 PM 編輯 ]




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