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3MasteringChemistry: CHE154 SX + A session.masteringchemistry.com/myct/itemView?assignmentProbleml CHE154-H C

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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3MasteringChemistry: CHE154 SX +
A session.masteringchemistry.com/myct/itemView?assignmentProbleml
CHE154-H C
<CHE154 S20 Ch17 Sec5-6
Chapter 17 Multiple Choice Question 40
Part A
Determine the [H3O*] in a 0.265 M HCIO solution. The K, of HCIO is 2.9 x 10-8.
7.7 x 10-9 M
4.9 x 10-4 M
1.1 x 10-10 M
8.8 x 10-5 M
1.3 x 10-6 M
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Expert Solution

Step 1

Given:

Initial concentration of HClO = 0.265 M

K_a = 2.9×10^-8

Chemical reaction is given by,

Step 2

ICE table is given by,

	HClO	H₃O⁺	ClO^-
Initial (M)	0.265	0.0	0.0
Change (M)	-x	+x	+x
Equilibrium (M)	0.265 - x	x	x

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