Question

ascorbic acid, or vitamin c (c6h8o6, molar mass = 176 g/mol), is a naturally occurring organic compound with antioxidant properties. a healthy adult’s daily requirement of vitamin c is 70-90 mg. a sweet lime contains 2.86×10−4 mol of ascorbic acid.

Answer 1

2.88 x 10^-4 mol x 176 g/mol = 0.05072256 g = 0.0507 g 

50.7 mg does not meet the daily requirement.

Answer 2

Answer : 50.7 mg

Explanation : One mole of ascorbic acid molecule $C_{6}H_{8}O_{6}$ contains molar mass as 176 g/mol. When a person consumes a sweet lime which has the ascorbic acid content as $2.86 X 10^{- 4} mol$; the total requirement of vitamin C for the adult human will be equal to;

$2.86 X 10^{- 4} X 176$ = 0.050688 g = 50.7 mg

This clearly shows that consuming one sweet lime daily will not fulfill the requirement of vitamin C for the human adult body, as the requirement range is from 70-90 mg daily.