Solves Chapter 18 Homework connect CHM1046 CHM1046 SPRING 20

Solves Chapter 18 Homework connect. CHM1046: CHM1046 SPRING 2018 TRY pter 18 Homework Question 19 (of 33) 10.00 points 1 out of 3 attempts Be sure to answer all parts. Assistance Hypochlorous acid, HC1O, has a pX, of7.54. What is (CIO in 0.115 M HCo? ico-l-- 10 L -M (Enter your answer in scientific notation.) References Book & Resources Multipart Answer Hard MacBook Air

Solution

Given pKa = 7.54

Ka = 10^-Ka = 2.884 x 10^-8

Balanced chemical reaction with ICE TABLE

HClO + HO ClO + HO
I 0.115

C - x +x +x

E 0.115-x x x

Equilibrium constant expression of the reaction

Ka = [ClO][HO]/[HClO]

2.884 x 10^-8 = x²/(0.115 – x)

2.884 x 10^-8 x²/0.115

[ClO] = x = 6.51 × 10 M