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Unformatted text preview: of an ionic compound is calculated by adding its atomic weights according to its empirical formula. The Mole A mole is defined as the quantity of a substance that has the same number of particles as are found in 12.000 grams of carbon-12. This number, Avogadro's number, is 6.022x1023. The mass in grams of one mole of a compound is equal to the molecular weight of the compound in atomic mass units. One mole of a compound contains 6.022x1023 molecules of the compound. The mass of 1 mole of a compound is called its molar weight or molar mass . The units for molar weight or molar mass are grams per mole. Here is the formula for determining the number of moles of a sample: mol = weight of sample (g) / molar weight (g/mol)...
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