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pK(a1) and pK(a(2)) of H(2)CO(3) are 6.3...

`pK_(a1)` and `pK_(a_(2))` of `H_(2)CO_(3)` are 6.38 and 10.26 respectively. The pH of 1 M and 0.1 M `NaHCO_(3)` are

A

8.32,7.32

B

7.32,8.32

C

8.32,8.32

D

7.32,7.32

Text Solution

Verified by Experts

The correct Answer is:
C
pH in this case is independent of concentration.
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DINESH PUBLICATION-IONIC EQUILIBRIUM -MULTIPLE CHOICE QUESTIONS
  1. Hydrolysis constant of NH(4)^(+) is 5.55 xx 10^(-10). The ionisation c...

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  2. The pH of 0.1 M NaHCO(3) is (Given K(a1) and K(a2) for H(2)CO(3) are 6...

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  3. pK(a1) and pK(a(2)) of H(2)CO(3) are 6.38 and 10.26 respectively. The ...

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  4. pK(a1) , pK(a(2)) and pK(a(3)) of H(3)PO(4) are respectively x,y and z...

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  5. pH of the solution containing 50.0 mL of 0.3 M HCl and 50.0 mL of 0.4 ...

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  6. pH at which an acidic indicator with K("in")=1xx10^(-5) changes colour...

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  7. pH at which a basic indicator with K("in")=1xx10^(-10) changes colour ...

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  8. A weak base, B, has basicity constant K(b)=2xx10^(-5). The pH of any s...

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  9. pH of 0.01 M (NH(4))(2) SO(4) and 0.02 M NH(4)OH buffer (pK(a) of NH(4...

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  10. 100mL of pH =6 solution is diluted to 100mL by water. pH of the soluti...

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  11. Auto-ionisation of liquid NH(3) is 2NH(3) hArr NH(4)^(o+) +NH(2)^(Th...

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  12. BOH is a weak base, molar concentration of BOH that provides a [OH]^(-...

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  13. Which of the following solution will have pH of 4.74

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  14. Which of the following mixtures will act as a buffer solution when dis...

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  15. For the reaction S(2)O(3)^(2-)(aq) +2H(3)O^(+)(aq) hArr S(s)+H(2)SO(...

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  16. Both HCOOH and CH(3)COOH solutions have equal pH. If K(1) // K(2) ( r...

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  17. pH of Ca(OH)(2) solution is 12. Millimoles of Ca(OH)(2) present in 100...

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  18. A buffer solution contains 100mL of 0.01 M CH(3)COOH and 200mL of 0.02...

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  19. Assuming 100% ionization in case of strong electrolytes which of the f...

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  20. To prepare a buffer of pH 8.26, amount of (NH(4))(2)SO(4) to be added ...

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