Question
Asked Oct 9, 2019
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What is the pH of a 0.10 M NaF solution? The Ka for HF is 6.8 x 10-4

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Expert Answer

Step 1

The values are given as follows:

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concentration of NaF 0.10 M Kfor HF 6.8x10

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Step 2

A solution of NaF consists of F- and Na+ ions. Here, the F- is considered as conjugate base of the weak acid HF. The equation for the dissociation constant of water can be represented as follows:

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Here K water dissociation constant К, K acid dissociation constant K base dissociation constant

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Step 3

The base dissociation constant (Kb) for F- can be calculated w...

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Since, Kg 1.0x101 Now К, К, К, w 1.0x 1014 6.8x10 1.47 x1011

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