Question

Which of the following is the correct decreasing order of hydrogen ions concentrations?

Answer 1

Answer: A> B> C > D> E

Step-by-step explanation:

pH or pOH is the measure of acidity or alkalinity of a solution.

pH is calculated by taking negative logarithm of hydrogen ion concentration.

`pH=-\log [H^+]`

a) Solution A: pH =2

`[H^+]=10^(-2)`

b) Solution B: pH =5

`[H^+]=10^(-5)`

c) Solution C: pH = 7

`[H^+]=10^(-7)`

d) Solution D: pH = 8

`[H^+]=10^(-8)`

e) Solution E: pH =13

`[H^+]=10^(-13)`

Thus the decreasing order of hydrogen ion concentration is A> B> C > D> E