Home
Class 12
CHEMISTRY
The pH of a buffer solution containing r...

The pH of a buffer solution containing ratio of concentration of salt of weak acid and weak acid equal to 2 is `(pK_(a)=4.75, log 2 = 0.3010)` :

A

`4.45`

B

`5.05`

C

`1.425`

D

`13.699`

Text Solution

Verified by Experts

The correct Answer is:
B
`pH=pK_(a)+"log"(["Salt"])/(["Acid"])`
or `pH=4.75+0.3010=5.05`
Promotional Banner

Topper's Solved these Questions

  • EQUILIBRIUM

    MODERN PUBLICATION|Exercise Multiple Choice Questions (Level - II)|90 Videos

  • EQUILIBRIUM

    MODERN PUBLICATION|Exercise Multiple Choice Questions (Level - III)|13 Videos

  • ENVIROMENTAL POLLUTION

    MODERN PUBLICATION|Exercise RECENT EXAMINATION QUESTIOS|2 Videos

  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    MODERN PUBLICATION|Exercise Recent Examination Questions|13 Videos

Similar Questions

Explore conceptually related problems

The pH of a buffer solution containing a weak acid (pK_(a)) and its salt is :

A buffer solution contains 0.1 M each of acetic acid and sodium acetate. The pH of the buffer solution is (pK_(a)(CH_(3)COOH)=4.75) :

The pH of an aqueous solution of a 0.1 M solution of a weak monoprotic acid which is 1% ionised is :

In a buffer solution of weak acid and its salt, when the concentration of salt to acid is increased by 10 times, the pH of the solution,

The hydrogen ion concentration of a buffer solution consisting of a weak acid and its salt is given by .............

It has been found that the pH of a 0.01 M solution of an organic acid is 4.15. The concentration of the anion of the acid is :

MODERN PUBLICATION-EQUILIBRIUM-Recent Examination Questions
  1. The pH of a buffer solution containing ratio of concentration of salt ...

    Text Solution

    |

  2. Consider the following gaseous equilibria with equilibrium constants K...

    Text Solution

    |

  3. 0.023g of sodium metal is reacted with 100 cm^(3) of water. The pH of ...

    Text Solution

    |

  4. A buffer solution contains 0.1 mole of sodium acetate dissolved in 100...

    Text Solution

    |

  5. One dm^(3) solution containing 10^(-5) moles each of Cl^(-) ions and C...

    Text Solution

    |

  6. pH value of which one of the following is NOT equal to one ?

    Text Solution

    |

  7. The pH of the solution obtained by mixing 100 mL of a solution of pH =...

    Text Solution

    |

  8. The equilibrium constant of the reaction : A((s))+2B((aq))^(+)hArr...

    Text Solution

    |

  9. The equilibrium constant of a reaction is 0.008 at 298 K. The standard...

    Text Solution

    |

  10. 5 mL of 0.4N NaOH is mixed with 20 mL of 0.1N HCl. The pH of the resul...

    Text Solution

    |

  11. On adding which of the following the pH of 20 mL of 0.1 N HCl will not...

    Text Solution

    |

  12. The yield of the products in the reaction, A(2(g))+2B((g))hArr C((...

    Text Solution

    |

  13. The conjugate base of H(2)PO(4)^(-) is :

    Text Solution

    |

  14. Identify a species which is 'NOT' a Bronsted acid but a Lewis acid.

    Text Solution

    |

  15. The pH of 10^(-8) M HCl solution is :

    Text Solution

    |

  16. An example for a neutral buffer is :

    Text Solution

    |

  17. For the equilibrium: CaCO(3(s)) iff CaO((s)) + CO(2(g)) , Kp = 1.64 at...

    Text Solution

    |

  18. The number of H^(+) ions present in 1 ml of a solution whose pH is 13 ...

    Text Solution

    |