Question

How man kilograms of chlorine are in 20kg of each of the following chlorofluorocarbons (CFCs)? CF2Cl2...

How man kilograms of chlorine are in 20kg of each of the following chlorofluorocarbons (CFCs)?

CF2Cl2

CFCl3

C2F3Cl3

CF3Cl

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Homework Answers

Answer #1

Molar mass of CF2Cl2 = 12 + 2 * 19 + 2 * 35.5 = 121 gm/mol

Mass of Chlorine in CF2Cl2 = 71/121 * 20 Kg = 11.735 Kg

Molar mass of CFCl3 = 12 + 19 + 3 * 35.5 = 137.5 gm/mol

Mass of chlorine in CFCl3 = 106.5/137.5 * 20 Kg = 15.49 Kg

Molar mass of C2F3Cl3 = 2 * 12 + 3 * 19 + 3 * 35.5 = 187.5 gm/mol

Mass of chlorine in C2F3Cl3 = 106.5/187.5 * 20 = 11.36 Kg

Molar mass of CF3Cl= 12 + 3 * 19 + 35.5 = 104.5 gm/mol

Mass of chlorine in CF3Cl = 35.5/104.5 * 20 = 6.794 Kg

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