Ka for a 0.100 M hydrofluoric acid solution where whose pH is 2.23 is a. 3.5x10-4 b. 3.5x10-2 c. 8.0x10-1 d. 8.0x10-2

Chemical Principles in the Laboratory
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ISBN:9781305264434
Author:Emil Slowinski, Wayne C. Wolsey, Robert Rossi
Publisher:Emil Slowinski, Wayne C. Wolsey, Robert Rossi
Chapter25: Ph Measurements-buffers And Their Properties
Section: Chapter Questions
Problem 3ASA: The pH of a 0.10 MHOBr solution is 4.8. What is H in that solution? ____________M What is OBr-? What...
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Ka for a 0.100 M hydrofluoric acid solution where whose pH is 2.23 is

a. 3.5x10-4
b. 3.5x10-2
c. 8.0x10-1
d. 8.0x10-2
Expert Solution
Step 1

Hydrofluoric acid is a weak acid

The equation representing dissociation of HF in water: HF + H2 F- + H3O+

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