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M Your Funds Have Dis x ML My Drive-Google Dr x G Tender Flank Steak R x How to

ID: 494671 • Letter: M

Question

M Your Funds Have Dis x ML My Drive-Google Dr x G Tender Flank Steak R x How to take a screer x Barcelona (and vicini x University of Rio Gran C Search Textbook sol x X www.saplinglearning.com biscms/mod/ibis/view.php?id 3466494 Assignment Resources 3/12/2017 :55 PM 19.2/100 Gradebook O Assignment Information a Attempts Score t Print calculator Periodic Table Available From: 2/27/2017 08:00 AM Question 10 tot 10 3/12/2017 11:55 PM Due Date 95 Map General Chemistry 4h Edton University Science Books Points Possible MCO Rock Ga oghu presented by Sapling Loaming 97 Grade Category: Graded Phosphorus pentachloride decomposes according to the chemical equation Description: Solving Equilibrium Problems. Reading ,80 at 250°C Assignment: Section 17.5 Policies: Homework A 0.404 mol sample of PCI50g) is injected into an empty 4.90 L re vessel held at 250 C action Calculate the concentrations of PCI5(g) and PCIalg) at equilibrium. You can check your answers. You can view solutions when you complete or give up on any question. PCI You can keep trying to answer each question until you get it right or give up. Number You lose 5% of the points available to each answer PCI in your question for each incorrect attempt at that answer. o Textbook OHelp with This Topic OWeb Help & Videos A Previous ® Give Up 8 view solution 2 check Answer ONext Exit O Technical Support and Bug Reports 2017 Sapling about us careers partners privacy policy terms of use contact us help

Explanation / Answer

molarity of PCl5 = 0.404 / 4.90 = 0.0824

PCl5 (g ) -------------> PCl3 (g) + Cl2 (g)

0.0824                             0               0

0.0824 - x                        x                x

Kc = [PCl3][Cl2] / [PCl5]

1.80 = x^2 / 0.0824 - x

x = 0.0790

concentrations of

[PCl5] = 0.00344 M

[PCl3] = 0.0790 M