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Asked Oct 4, 2019
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How many grams of Cl are in 105 g CaCl2?

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Given, Mass of CaCl2= 105 g Moles of CaCl2 can be calculated as: Molar mass of CaCl2 40(2x35.5) 111 g/mol 105 g Mass Moles Molar mass 111 g/mol 0.946 mol

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1 mol of CaCl2 contains 2 mol of Cl. Therefore, moles of Cl in 0.946 mol of CaCl2 can be calculated as 1 mol CaCl2 contains 2 mol Cl 2 mol Cl x 0.946 mol of CaCl2 0.946 mol CaCl2 contains 1 mol CaCl2 = 1.892 mol Cl

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Mass of Cl can be calculated as: Mass MolesMolar mass Mass Moles x Molar mass 1.892 mol x 35.5 g/mol Mass Mass 67.166 g

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