Question

can the pH value be out of the range (0-14)? if yes prove it

Answer 1

yes.

it is possible that a solution can have a pH out of the range (0-14).

for this,

the solution needs to be very high acidic or basic.

Proof:

pH is given by

pH= -log(H+)

so,

If {H+}= 1M, the pH=0

If {H+}> 1M, log(H+)>0 , pH<0

so in this case pH can be negative.

If [H+]< 10^-14, then

pH > 14.

so for very high concentration of H+, pH can be negative and for very low concentration of H+, pH can be greater than 14.

Please like the solution.Feel free to ask any doubt in comments.