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13-05-2019
Chemistry

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The molecular weight of vitamin C , C6H8O6 is 176.12 grams over mol
What is the mass in grams of 0.000142 mole of vitamin C Express the answer using three significant figures

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superman1987 superman1987

14-05-2019

Answer:

0.0250 g.

Explanation:

∵ no. of moles (n) = mass / molar mass.

∴ mass of Vitamine C = (n)(molar mass) = (0.000142 mol)(176.12 g/mol) = 0.02501 g = 0.0250 g. "three significant figures"

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