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Author Question: What is the pH a 2.0-liter buffered solution created from 0.35 M NH3(Kb= 1.8 105) and 0.26 M NH4F? (Read 61 times)

cdr_15

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Question 1

What is the percent dissociation of HNO2 when 0.060 g of sodium nitrite is added to 115.0 mL of a 0.065 M HNO2 solution? Ka for HNO2 is 4.0 × 10–4.

14%
0.34%
5.3%
0.077%
7.8%

Question 2

What is the pH a 2.0-liter buffered solution created from 0.35 M NH3(Kb= 1.8 × 10–5) and 0.26 M NH4F?

9.26
9.38
4.62
4.87
9.13


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Marked as best answer by cdr_15 on Mar 21, 2021

AISCAMPING

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cdr_15

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Reply 2 on: Mar 21, 2021
Great answer, keep it coming :)


covalentbond

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Reply 3 on: Yesterday
:D TYSM

 

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