Equilibrium Question 445

Question: At 80oC, distilled water has [H3O+] concentration equal to 1×106mole/litre. The value of Kw at this temperature will be [CBSE PMT 1994; RPMT 2000; AFMC 2001; AIIMS 2002; BHU 2002]

Options:

A) 1×106

B) 1×109

C) 1×1012

D) Ksp

Show Answer

Answer:

Correct Answer: C

Solution:

Kw=[H3O+][OH] Concentration of H3O+ in distilled water =1×106 mol/l. Now [H3O+]=[OH]

Kw=[1×106]×[1×106]=1×1012 .



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