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At 90^(@)C pure water has [H(3)O^(+)] as...

At `90^(@)C` pure water has `[H_(3)O^(+)]` as `10^(-6) mol L^(-1)`. What is the value of `K_(w)` at `90^(@)C`?

A

`10^(-6)`

B

`10^(-8)`

C

`10^(-12)`

D

`10^(-14)`

Text Solution

Verified by Experts

The correct Answer is:
C
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RC MUKHERJEE-IONIC EQUILIBRIUM IN AQUEOUS SOLUTIONS-Objective Problems
  1. In which of the following cases is the acid strength highest?

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  2. The values of Kw in 0.1 M NaOH and 0.1 M NaCl are (a) same (b) same...

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  3. At 90^(@)C pure water has [H(3)O^(+)] as 10^(-6) mol L^(-1). What is t...

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  4. The pH of a 0.01 N monobasic acid is 4. The acid must be

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  5. 10^(-6) mole of KOH is dissolved in 10 litres of water. The pH of the ...

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  6. The pH of the solution containing 0.1 N HCl and 0.1N CH(3)COOH is

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  7. Calculate the pH of 10^(-8) M HCl solution .

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  8. pH of 10^(-11)M HCl is

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  9. If pH of a 0.01N monobasic acid is 2.0, the acid must be

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  10. If the temperature of water is increased from 25^@C" to "45^@C, the pH...

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  11. pH of a 10^(-3)M NaCl solution (aq) at 25^@C is

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  12. pH of an aq. NaCl solution at 85^@C should be

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  13. The pH of 7 xx 10^(-8) M CH3COOH" is "(Kw=1 xx 10^(-14))

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  14. The dissociation constant of an acid, HA is 1 x 10^-5 The pH of 0.1 M ...

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  15. 1 cc of 0:1 N HCI is added to 999 cc solution of NaCl. The pH of the r...

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  16. If a solution has a pH value of 14 at 25^@C, H^+ concentration should ...

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  17. What will be the hydrogen ion concentration in mole/litre of a solutio...

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  18. Which of the following would decrease the pH of 25 cm""^(2) of a 0.01 ...

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  19. The pH of a 0.1M NH(3) solution (K(b)=1.8 xx 10^(-5)) is

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  20. The pH of a buffer solution of 0.1 M NH4OH and 0.1 M NH4Cl" is "(pKb= ...

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