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How many molecules of sodium chloride in 15g of sodium chloride this atomic mass of sodium is 23gmol and of chlorine is 35gmol?

Updated: 12/24/2022

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∙ 13y ago

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The formula unit of sodium chloride has the formula NaCl, showing that each molecular unit contains one atom of each of its constituent elements. Therefore, the mass of the formula unit is 23 plus 35 or 57 amu. Each amu for a compound contains Avagadro's number of molecules. Therefore, the answer to the problem is about (15/57) X 6.022 X 1023 = 4.3 X 1022.

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