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The percent yield for the reaction PCl3 + Cl2 → PCl5 is 62.9 percent. What mass...

The percent yield for the reaction PCl3 + Cl2 → PCl5 is 62.9 percent. What mass of PCl5 would be expected from the reaction of 30.1 grams of PCl3 with excess chlorine?

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Answer #1

Given that percentage yield = 62.9%

Mass of PCl3 =30.1 g

Molar mass of PCl3=137 g/mol

Molar mass of PCl5 =208 g/mol

No. of moles of Polza 30.1 137 I 0 220 % yield- 62.9 x = degree of dissociation 62.9 100 -0.623 Pela + ca pels Initial 0.220

Thus mass of PCl5 formed is 28.704 g

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