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# Converting moles and mass

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## Problem

The molecular weight of sodium chloride, start text, N, a, C, l, end text, is 58, point, 44, start fraction, start text, g, end text, divided by, start text, m, o, l, end text, end fraction.
How many moles of salt are in 13, point, 8, start text, g, end text of sodium chloride?
Express the answer using 3 significant figures.
start text, m, o, l, end text
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