Home
Class 12
CHEMISTRY
What volumes of 0.200 M HNO2 and 0.200 M...

What volumes of 0.200 M `HNO_2` and 0.200 M `NaNO_2` are required to make 500 mL of a buffer solution with pH =3.00 ? [`K_a` for `HNO_2=4.00xx10^(-4)`]

A

250 mL of each

B

143 mL of `HNO_2` and 357 mL of `NaNO_2`

C

200 mL of `HNO_2` and 300 mL of `NaNO_2`

D

357 mL of `HNO_2` and 143 mL of `NaNO_2`

Text Solution

Verified by Experts

The correct Answer is:
d
Promotional Banner

Topper's Solved these Questions

  • HYDROGEN AND ITS COMPOUNDS

    GRB PUBLICATION|Exercise Subjective type|8 Videos

  • LIQUID SOLUTIONS

    GRB PUBLICATION|Exercise 11|12 Videos

Similar Questions

Explore conceptually related problems

Volume of 0.1 M K_2Cr_2O_7 required to oxidize 35 ml of 0.5 M FeSO_4 solution is

What volume of 0.1 M HCOONa solution should be added to 50ml of 0.05 M formic acid to produce a buffer solution of pH=4.0 , pK_(a) of formic acid =3.7 ?

Volume of 0.1M K_(2)Cr_(2)O_(7) required to oxidise 35 mL of 0.5M FeSO_(4) solution is

Volume of 0.1 M K_(2)Cr_(2)O_(7) required to oxidize 35 mL of 0.5 M FeSO_(4) solution is

The volume of 10.50 M solution required to prepare 1.0 L of 0.25 M solution of HNO_(3) is :

30 ml of 0.2 M NaOH is added with 50 ml "0.2 M "CH_(3)COOH solution. The extra volume of 0.2 M NaOH required to make the pH of the solution 5.00 is (10)/(x). The value of x is. The ionisation constant of CH_(3)COOH=2xx10^(-5) .

What is the pH of a solution that is 0.20 M in HF and 0.40 M in NaF ? [K_a=7.2xx10^(-4)]

GRB PUBLICATION-IONIC EQUILIBRIUM-All Questions
  1. What happens to the pH of a buffer solution when it is diluted by a fa...

    Text Solution

    |

  2. What is [H3O^+] in a solution formed by dissolving 1.00 g NH4Cl (M=53....

    Text Solution

    |

  3. What volumes of 0.200 M HNO2 and 0.200 M NaNO2 are required to make 50...

    Text Solution

    |

  4. 100 mL solution (I) of buffer containin 0.1 (M) HA and 0.2 (M)A^-, is ...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  8. 1.0 L of an aqueous solution in which [H2CO3]=[HCO3^-]=0.10 M, has [H^...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  13. 1 M benzoic acid (pKa=4.20) and 1 M C6H5COONa solutions are given sepa...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  17. 1 M NaCl and 1 M HCl are present in an aqueous solution. The solution ...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |