Hello, could you please answer the 5 questions in the attached pics. They are in relation to the lab you completed some questions for me for last Saturday.
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09:40
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k
Bobby Philip
Remaining Time: 39 minutes, 09 seconds
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QUESTION 1
20 points
What mass of DPPH do you need to weigh out in order to prepare 100ml of a 0.5mm solution? Show your calculation,
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10 points
QUESTION 2
Write the reaction of Apigenin reducing one molecule of DPPH.
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30 points
San
QUESTION 3
Show your calculation for the dilution from 1mg/ml, using only one 20ml volumetric flask to prepare the quercetin test solutions 100, 50, 10, 5, 1 and 0.5 micrograms per mi.
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4G+
09:40
*** ull 52% À
k
Bobby Philip
QUESTION 3
Show your calculation for the serial dilution from 1mg/ml, using only one 20ml volumetric flask to prepare the quercetin test solutions 100, 50, 10,5, 1 and 0.5 micrograms per ml.
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QUESTION 4
Show the graphic of AA% against concentration that you obtained for the quercetin evaluated in the practical showing the best regression line and the r square value
obtained.
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QUESTION 5
Why flavonoid-derived radicals are stable?
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