Answer :
Final answer:
To calculate the mass percent of chlorine in Phosgene (COCl₂), you first calculate the molar mass of the compound and the total mass of chlorine in the compound. Then, you divide the mass of chlorine by the total molar mass, and multiply by 100. The mass percent of chlorine in Phosgene is approximately 71.64%.
Explanation:
The mass percent of an element in a compound is the mass of the element divided by the total mass of the compound, multiplied by 100. Phosgene, COCl₂, consists of one Carbon atom (C), one Oxygen atom (O), and two Chlorine atoms (Cl). To get the mass percent of chlorine in phosgene, we first need to calculate the molar mass of phosgene. That would be the atomic mass of carbon (12.01 g/mol) plus the atomic mass of oxygen (16.00 g/mol) plus twice the atomic mass of chlorine (35.45 g/mol * 2), which equals approximately 98.91 g/mol. The total mass of Chlorine in the compound is 70.90 g/mol. So, the mass percent of chlorine in phosgene is (70.90 g/mol ÷ 98.91 g/mol) * 100, which equals about 71.64%. Therefore, the mass percent of chlorine in phosgene is roughly 71.64%.
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