Ascorbic acid, or vitamin C (C6H806, molar mass = 176 g/mol), is a naturally occurring organic compound with antioxidant

Question

Ascorbic acid, or vitamin C (C6H806, 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.
To determine whether the ascorbic acid in a sweet lime meets the daily requirement, calculate the mass of ascorbic acid in 2.86×10-4 mol of ascorbic acid.
Express the mass in grams to three significant figures.

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