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Which pair of solutions forms a buffer s...

Which pair of solutions forms a buffer solution when equal volumes of each are mixed ?

A

0.20 M HCl and 0.20 M NaOH

B

0.40 M `HC_2H_3O_2` and 0.20 M NaOH

C

0.20 M HCl and 0.20 M `NH_3`

D

0.40 M HCl and 0.20 M `NH_3`

Text Solution

Verified by Experts

The correct Answer is:
b
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GRB PUBLICATION-IONIC EQUILIBRIUM-All Questions
  1. 100 mL solution (I) of buffer containin 0.1 (M) HA and 0.2 (M)A^-, is ...

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  2. What is the pH of 1.00 L sample of a buffer solution containing 0.10 m...

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  3. Which pair of solutions forms a buffer solution when equal volumes of ...

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  4. A buffer solution made with NH3 and NH4Cl has a pH of 10.0 which proce...

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  5. 1.0 L of an aqueous solution in which [H2CO3]=[HCO3^-]=0.10 M, has [H^...

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  6. Which base is most suitable to prepare a buffer solution with a pH =11...

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  7. HCOOH (aq) hArr H^+(aq) +HCOO^-(aq),Ka=1.7xx10^(-4) The ionization o...

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  8. A student is asked to prepare a buffer solution with a pH of 4.00. Thi...

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  9. What is the pH of a solution that is 0.20 M in HF and 0.40 M in NaF ? ...

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  10. 1 M benzoic acid (pKa=4.20) and 1 M C6H5COONa solutions are given sepa...

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  11. What is the difference in pH for 1//3 and 2//3 stages of neutralizatio...

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

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  13. How many moles of NaOCI must be added to 150 mL of 0.025 MHOCI to obta...

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  14. 1 M NaCl and 1 M HCl are present in an aqueous solution. The solution ...

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  15. The pK(a) of a weak acid (HA) is 4.5. The pOH of an aqueous buffered s...

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  16. A buffer solution contains 1 mole of (NH(4))(2)SO(4) and 1 mole of NH(...

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  17. In which of the following combinations, is buffer action expected ? ...

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  18. Which solution is not a buffer solution ?

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  19. Which species has the lowest concentration in a solution prepared mixi...

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  20. Which may be added to one litre of water to act a buffer?

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