Posted by Steph on Monday, October 3, 2011 at 10:16pm.
The Vitamin C content claimed on the product label is that 1 cup of juice contains 130% of the recommended daily allowance (RDA) for vitamin C? Based on the product label claimed, how many milliliters of this juice must an adult drink to obtain the recommended daily allowance of vitamin C? The RDA for vitamin c varies with age, gender, and lifestyle, but for this calculation assume the RDA is 60 mg of vitamin C. Show your calculations.

Chemistry  DrBob222, Monday, October 3, 2011 at 11:13pm
A cup contains 130% vit C; how many mg is that? (x mg/60 mg)*100 = 130%. Solve for x and I get something like 78 mg vit C in a cup of the product. I think a cup is 8 oz; how many oz do we need to obtain 60 mg if the 8 oz cup contains 78 mg.
Wouldn't that be 8 oz x (60/78) = ?? or approximately 6 oz.

Chemistry  Mr Eng Ibrahem, Thursday, October 13, 2011 at 2:09pm
There origenal chemistry,electrical chemstry,biology chemstyry,physical chemstry
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