Answer to Question #63424 in General Chemistry for S

Question

Chapter 15 (15.56)

At 80 ∘C, Kc=1.87×10−3 for the reaction PH3BCl3(s)⇌PH3(g)+BCl3(g)

1) Calculate the equilibrium concentration of PH3 if a solid sample of PH3BCl3 is placed in a closed vessel at 80 ∘C and decomposes until equilibrium is reached.

2) Calculate the equilibrium concentration of BCl3 if a solid sample of PH3BCl3 is placed in a closed vessel at 80 ∘C and decomposes until equilibrium is reached.

3)If the flask has a volume of 0.24 L , what is the minimum mass of PH3BCl3(s) that must be added to the flask to achieve equilibrium?