For each strong base solution, determine CH30 OH pH, and poH. 8.82x10 s M LiOH E
ID: 1015654 • Letter: F
Question
For each strong base solution, determine CH30 OH pH, and poH. 8.82x10 s M LiOH Express your answer using three significant figures. Enter your answers numerically separated by a comma. OH E30 8.82 x 10 1.13x10 12 M My Answers Give Up Submit Correct Part B 8.82x10 s M LiOH Express your answer to three decimal places. Enter your answers numerically separated by a comma. pH, pOH 11.945.2.055 My Answers Give Up Submit Correct Part C 1.10x10 M Ba (OH Express your answer using three significant figures. Enter your answers numerically separated by a comma. OH H30 0.719, 5.36 M Submit My Answers Give Up incorrect; Try Again; 4 attempts remainingExplanation / Answer
PART C
1.10 x 10^-2 M Ba (oH)2
Ba(OH)2 + H2O ----> Ba+2 + 2OH-
Kw = 1 X 10-14 = [H3O+] [OH-]
Ba(OH)2
Ba(OH)2 ---------------gives 2 OH- per mole
1.10 x 10^-2 M = 0.0110
[OH-] = 2(.011) = .0220 M---------ANSWER
[OH-] = 0.022 M
1 X 10-14 = [H3O+] [0.022]
[H3O+] = 1 X 10-14/ 0.022 = 4.5454545e-13 = 4.5 X 10-13---------ANSWER
pH + pOH = 14
pH = -log[H3O+] = -log[ 4.5 X 10-13]
pH = 12.34 ---------ANSWER
pOH
pH + pOH = 14
12.34 + pOH = 14
pOH = 1.66-----------------ANSWER
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