Suppose 395% of 521 G PCl₅ (208 $\circ$ C Decomposes to Form PCl₃ (137

question 43

Multiple Choice

Suppose 3.95% of 521 g PCl₅ (208.2 g/mol) initially present in a 10.0 L reaction vessel at 300 ^$\circ$ C decomposes to form PCl₃ (137.3 g/mol) and Cl₂ (70.90 g/mol) .What is the resulting pressure of PCl₃? PCl₅(g) $\to$ PCl₃(g) + Cl₂(g)

• A)4.66 atm
• B)6.15 atm
• C)11.8 atm
• D)0.465 atm
• E)0.243 atm

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