Home
Class 11
CHEMISTRY
A buffer solution is prepared by mixing ...

A buffer solution is prepared by mixing equal concentration of acid (ionisation constant `K_(a)`) and a salt. The pH of buffer is

A

`pK_(a)+7`

B

`14-pK_(a)`

C

`pK_(a)`

D

`pK_(a)+1`

Text Solution

Verified by Experts

The correct Answer is:
C
pH of buffer is
`pH =pK_(a)+log. (["salt"])/(["acid"])`
Since , [salt] =[acid] , `pH = pK_(a)`
Promotional Banner

Topper's Solved these Questions

  • IONIC EQUILIBRIUM

    ERRORLESS|Exercise PAST YEARS QUESTIONS|64 Videos

  • IONIC EQUILIBRIUM

    ERRORLESS|Exercise ASSERTION AND REASON |9 Videos

  • IONIC EQUILIBRIUM

    ERRORLESS|Exercise NCERT BASED QUESTIONS (COMMON ION EFFECT, ISOHYDRIC SOLUTIONS, SOLUBILITY PRODUCT, IONIC PRODUCT OF WATER AND SALT HYDROLYSIS)|59 Videos

  • HYDROGEN

    ERRORLESS|Exercise ASSERTION & REASON|6 Videos

  • PURIFICATION, CLASSIFICATION AND NOMENCLATURE OF ORGANIC COMPOUNDS

    ERRORLESS|Exercise ASSERTION & REASON|9 Videos

Similar Questions

Explore conceptually related problems

A basic buffer solution can be prepared by mixing the solution of

An acidic buffer solution can be prepared by mixing solution of

An acidic buffer solution can be prepared by mixing solution of

A buffer solution can be prepared by mixing solution of:

A buffer solution of pH =9 can be prepared by mixing

An acidic buffer solution can be prepared by mixing equimolar amounts of

An acidic buffer contains equal concentrations of acid and salt. The dissociation constant of acid is 10^(-5) . The P^(H) of the buffer solution is

An acid buffer can be prepared by mixing solution of

ERRORLESS-IONIC EQUILIBRIUM-NCERT BASED QUESTIONS (HYDROGEN ION CONCENTRATION- PH SCALE AND BUFFER SOLUTION)
  1. How much sodium acetate should be added to a 0.1 M solution of CH(3)CO...

    Text Solution

    |

  2. Which of the following is a buffer

    Text Solution

    |

  3. A buffer solution is prepared by mixing equal concentration of acid (i...

    Text Solution

    |

  4. A certain buffer solution sontains equal concentration of X^(-) and HX...

    Text Solution

    |

  5. The condition for minimum change in pH for a buffer solution is

    Text Solution

    |

  6. The ionization constant of a certain weak acid is 10^(-4). What should...

    Text Solution

    |

  7. Which is not a buffer solution

    Text Solution

    |

  8. Consider the following solutions of equal concentrations {:(A= NH(4...

    Text Solution

    |

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

    Text Solution

    |

  10. The pH of a solution at 25^(@)C containing 0.10 M sodium acetate and 0...

    Text Solution

    |

  11. The most important buffer in the blood consist of :

    Text Solution

    |

  12. Henderson's equation is pH = pK(a) + log.(["salt"])/(["acid"]). If the...

    Text Solution

    |

  13. Which one of the following is the buffer solution of strong acidic nat...

    Text Solution

    |

  14. pH of a solution of 10 ml. 1 N sodium acetate and 50 ml 2N acetic acid...

    Text Solution

    |

  15. The pH of a buffer solution containing 25 ml of 1 M CH(3)COONa " and 1...

    Text Solution

    |

  16. In a mixture of weak acid and its salt, the ratio of concentration of ...

    Text Solution

    |

  17. pH of a buffer solution decreases by 0.02 units when 0.12g of acetic a...

    Text Solution

    |

  18. The ratio of volumes of CH(3)COOH0.1 (N) to CH(3)COONa 0.1 (N) require...

    Text Solution

    |

  19. Calculate the amount of (NH(4))(2)SO(4) in grams which must be added t...

    Text Solution

    |

  20. If 50ml of 0.2 M KOH is added to 40 ml of 0.5 M HCOOH, the pH of the r...

    Text Solution

    |