IIT JEE , AIEEE Forum - Chemistry , Physical Chemistry

Ricky_rock

If the concentration of H₃O⁺ is 10^-6.Calculate K_w?

allamraju

Is the ans 10^-12.I am not too sure.

ssbrightstar1

Yes,the answer is right but please explain

risin

In H₃O⁺ the concentration of H⁺ and OH^- is same..so K_w=[h][oh] 0r 10^-12..not very sure.

digs2digi

calculate ph.that wub be 6.noe pKw is double of ph hamesha.so pKw is12.so Kw is 10 raise to power -12.rate if correct

dream

2H2O---------------> OH- + H3O+

now

Kw = [OH-] [H3O+]

for neutral solution , [OH-] = [H3O+]

so we get

Kw = 10^ -12

allamraju

My solution is same as that of dream.He is correct.