Question

Consider the following data on some weak acids and weak bases: acid Ka name formula hydrocyanic...

Consider the following data on some weak acids and weak bases:

acid

Ka

name formula
hydrocyanic acid

HCN

4.9×10−10

acetic acid

HCH3CO2

1.8×10−5

base

Kb

name formula
aniline

C6H5NH2

4.3×10−10

hydroxylamine

HONH2

1.1×10−8

Use this data to rank the following solutions in order of increasing pH. In other words, select a '1' next to the solution that will have the lowest pH, a '2' next to the solution that will have the next lowest pH, and so on.

solution pH
0.1 M KCH3CO2
0.1 M C6H5NH3Cl
0.1 M NaCN
0.1 M HONH3Br
0 0
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