Question

if H+ ion concentration is 10^-3M,then poH is
a)3
b)13
c)11
d)12​

Answer 1

The pOH of the solution is 11.

Option (c) is correct.

Explanation:

• The value of pH determines whether a solution is acidic or basic in nature.
• pH values range from 0 - 17. A neutral solution has 7 pH.
• To calculate the pH value negative log is taken of the respected ions.
• For example, px = -logX
• Here "X" is the hydroxide or hydrogen ion.

pH = -log [H+]

pH = -log x 10^-3

pH = 3

Now

pH + pOH = 14

3 + pOH = 14

pOH = 14 - 3 = 11

Answer 2

$\huge \tt c) \: \: 11$