Home
Class 12
CHEMISTRY
What is the pH of 0.01 M glycine solutio...

What is the `pH` of `0.01 M` glycine solution? For glycine, `K_(a_(1))=4.5xx10^(-3)` and `K_(a_(2))=1.7xx10^(-10)` at `298 K`

A

`3.0`

B

`10.0`

C

`6.1`

D

`7.2`

Text Solution

Verified by Experts

The correct Answer is:
C
`pK_(a1)=-log 4.5 xx 10^(-3) = 3- log 4.5 `
`pK_(a2)=- log 1.7 xx 10^(-10)=10- log 1.7`
`pH=(1)/(2)[pK_(a1)+pK_(a2)]`
`=(1)/(2)[3- log 4.5 +10-log 1.7 ]`
`=(1)/(2)[13-log 7.65]=6.1`
Promotional Banner

Topper's Solved these Questions

  • IONIC EQUILIBRIUM

    DINESH PUBLICATION|Exercise SELECTED STRAIGHT OBJECTIVE TYPE MCQs|10 Videos

  • IONIC EQUILIBRIUM

    DINESH PUBLICATION|Exercise MCQs with only one correct Answer|29 Videos

  • IONIC EQUILIBRIUM

    DINESH PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS|60 Videos

  • HYDROCARBONS

    DINESH PUBLICATION|Exercise All Questions|493 Videos

  • NO IDEA

    DINESH PUBLICATION|Exercise Unit Test -|1 Videos

Similar Questions

Explore conceptually related problems

What is the pH of 10^(-3) M ammonia cyanide solution, if K_(HCN)=7.2 xx 10^(-11) and K_(NH_(3))=1.8 xx 10^(-5)mol L^(-1) ?

The pH of a 0.1 M solution of NH_(4)OH (having K_(b)=1.0xx10^(-5)) is equal to

What will the pH of the solution of the salt of weak acid and weak base? (K_(b) = 1 xx 10^(-6) and K_(a) = 1 xx 10^(-4) )

Calculate the pH of 0.010M NaHCO_(3) solution. K_(1)=4.5xx10^(-7) , K_(2)= 4.7xx10^(-11) for carbonic acid.

Calculate the pH of a 0.01 M solution of benzoic acid, the K_a being 7.3xx10^(-5)

DINESH PUBLICATION-IONIC EQUILIBRIUM -REVISION QUESTIONS FROM COMPETITVE EXAMS
  1. The rapid change of pH near the stoichiometric point of an acid-base t...

    Text Solution

    |

  2. The solubility product of a sparingly soluble salt AX(2) is 3.2xx10^(-...

    Text Solution

    |

  3. What is the pH of 0.01 M glycine solution? For glycine, K(a(1))=4.5xx1...

    Text Solution

    |

  4. Which of the following is acidic in nature ?

    Text Solution

    |

  5. At 90^(@)C, pure water has [H(3)O^(o+)] = 10^(-6)M. What is the value ...

    Text Solution

    |

  6. The pH of a buffer solution of 0.1 M NH(4)OH [ pK(a)=4.0] and 0.1 M NH...

    Text Solution

    |

  7. 50 mL of 0.1 M HCl and 50 mL of 2.0 M NaOH are mixed. The pH of the r...

    Text Solution

    |

  8. The solubility product of a salt having general formula MX(2) in water...

    Text Solution

    |

  9. Hydrogen ion concentration in mol//L in a solution of pH=5.4 will be:

    Text Solution

    |

  10. The conjugate base of OH^(-) is :

    Text Solution

    |

  11. The pH of a solution of H(2)O(2) is 6.0. Some chlorine gas is bubbled ...

    Text Solution

    |

  12. At 25^(@)C, the dissociation constant of a base. BOH is 1.0xx10^(-12)...

    Text Solution

    |

  13. The correct relationship between the pH of isomolar solutions of sodiu...

    Text Solution

    |

  14. When 10 ml of 0.1 M acitec acid (pk(a)=5.0) is titrated against 10 ml ...

    Text Solution

    |

  15. The K(a) value of formic acid and acetic acid are respectively 1.77 xx...

    Text Solution

    |

  16. Equal volumes of the following Ca^(2+) and F^(-) solutions are mixed. ...

    Text Solution

    |

  17. If 0.1 M of a weak monobasic acid is taken and its percentage degree o...

    Text Solution

    |

  18. Dissociation constant of NH(4)OH is 1.8 xx 10^(-5) . The hydrolysis co...

    Text Solution

    |

  19. Which of the following anions is the weakest base ?

    Text Solution

    |

  20. H(2)S gas when passed through a solution of cations containing HCl pre...

    Text Solution

    |