Answer:
And whereas one sodium atom has an approximate mass of 23 u, 1 mol of Na atoms has an approximate mass of 23 grams. One mole of a substance has the same mass in grams that one atom or molecule has in atomic mass units.
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1 Na molar mass: 22.99 g
1 Cl molar mass: 35.45 g
Total: 58.44 g
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