M- Texas Woman University... x C Chegg study Guided sol... x /biscm 3145131 ming
ID: 500781 • Letter: M
Question
M- Texas Woman University... x C Chegg study Guided sol... x /biscm 3145131 ming-com Ga e now to save a screen shot a apicture Tr A E pling My Assignment Resources 3/29/2017 11:55 PM CR 38.3/100 3/22/2017 08:28 PM Gradebook o Assignment Information Attempts Score Print Calculator Periodic Table Available From: 3/3/2017 12:00 AM Question 5 of 22 Due Date: 3/29/2017 11:55 PM Map Sapling Learning Points Possible: Grade Category: Graded At 25 'C only 0.0190 mol of the generic salt AB2 is soluble in 1.00 Lof water. Description What is the Ksp of the salt at 25 "C? Policies: AB, 2B lag. You can check your answers. 100 Number You can view solutions when you complete or give up on any que You can keep trying to answer each question until you get it right or give up. You lose 59% of the points available to each answer AO Previous 8 Give Up & View Salution Check Answer ONext i Exit in your question for each incorrect attempt at that For the solubility equilibrium AB, s 2B (ag o eTextbook the equilibrium-constant expression is o Help with This Topic OWeb Help & Videos o Technical support and Bug Reports 67 4:25 PM Ask me anything 3/24/2017 R3Explanation / Answer
For
AB2 <-> A+2 and 2B-
so
[AB2] = 0.019/1 = 0.019 M
so
[A+2] = [AB2] = 0.019 M
[B-] = 2* [AB2] = 2*0.019 M = 0.038 M
so
Ksp = [A+2][B-]^2
substitute
Ksp = (0.019)(0.038)^2
Ksp = (0.000027436)
Ksp = 2.74*10^-5
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