Home
Class 12
CHEMISTRY
A mixture of weak acid is 0.1M in HCOOH ...

A mixture of weak acid is `0.1M` in `HCOOH (K_(a) = 1.8 xx 10^(-4))` and `0.1M` in `HOCN (K_(a) = 3.1 xx 10^(-4))`. Hence, `[H_(3)O^(o+)]` is

A

`7.0 xx 10^(-3) M`

B

`4.1 xx 10^(-4) M`

C

0.20M

D

`4.1 xx 10^(-3) M`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ICONIC EQUILIBRIUM

    VMC MODULES ENGLISH|Exercise IMPECCABLE|50 Videos

  • ICONIC EQUILIBRIUM

    VMC MODULES ENGLISH|Exercise ENABLE|50 Videos

  • HYDROCARBONS

    VMC MODULES ENGLISH|Exercise JEE Advanced Archive|121 Videos

  • INTRODUCTION TO ORGANIC CHEMISTRY

    VMC MODULES ENGLISH|Exercise JEE ADVANCED ARCHIVE|81 Videos

Similar Questions

Explore conceptually related problems

Calculate the ratio of concentration of HCOO^(-) & OCN^(-) ions in a solution containing 0.1M HCOOH (K_(a)=1.8xx10^(-4)) and 0.1M HOCN(K_(a_(1))=4xx10^(-4)) .if simplest ratio is a:b reprot your answer as (a+b) .

Calculate the ratio of [HXOO^(-)] and [F^(-)] in a mixture of 0.2 M HCOOH (K_(a)=2xx10^(-4)) and 0.1 M HF (K_(a)=6.6xx10^(-4)) : (a) 1:6.6 (b) 1:3.3 (c) 2:3.3 (d) 3.3:2

Calculate [H^(o+)] in a soluton that is 0.1M HCOOH and 0.1 M HOCN. K_(a)(HCOOH) = 1.8 xx 10^(-4), K_(a) (HoCN) = 3.3 xx 10^(-4) .

Calculate [H^+],[HCOO^(-)] and [OCN^(-)] in a solution that contains 0.1 M HCOOH (K_a=2.4xx10^(-4)) and 0.1 M HOCN (K_a=4xx10^(-4)) .

The [H^(+)] of a resulting solution that is 0.01 M acetic acid (K_(a)=1.8xx10^(-5)) and 0.01 M in benzoic acid (K_(a)=6.3xx10^(-5)) :

Concentration of CN^(-) " in " 0.1 M HCN is (Given : K_(a) = 4 xx 10^(-10) )

Calculate the degree of hydrolysis of a mixture of aniline and acetic acid each of them being 0.01M. K_(a) of acetic acid = 1.8 xx 10^(-5) and K_(b) ("aniline") = 4.5 xx 10^(-10) . Also calculate pH of the mixture.

For the reaction k_(1) = 1.78 xx 10^(-3)s^(-1) and k_(2) = 5.8 xx 10^(-5)s^(-1) for the initial concentration of [Cr(H_(2)O)_(4)Cl_(2)]^(o+) is 0.0174 mol L^(-) at 0^(@)C . Calculate the value of time at which the concentration of [Cr(H_(2)O)_(5)Cl]^(2+) is maximum.

Calculate percentage hydrolysis in 0.003 M aqueous solution K_(a) for HOCN = 3.35 xx 10^(-4) and K_(w) = 10^(-14)

The ratio of acid strength of HOCN and HCN is about Given K_(a) of HOCN=1.2xx10^(-4) and K_(a)" of "HCN "=4.2 xx10^(-10)

VMC MODULES ENGLISH-ICONIC EQUILIBRIUM-EFFICIENT
  1. The dissociation constant of 0.01 M CH3COOH is 1.8xx10^(-5) , then cal...

    Text Solution

    |

  2. The pH value of gasfric juice in humna stomach is about 1.8 and in in...

    Text Solution

    |

  3. How many times a solution of pH = 2 has higher acidity than a solution...

    Text Solution

    |

  4. Which statement is false ? (Assume complete dissociation in each case)

    Text Solution

    |

  5. pH of HCI is 2.1. what is [OH^(-)] in its solution?

    Text Solution

    |

  6. An acid-base indicator has a K(a) = 3.0 xx 10^(-5). The acid form of t...

    Text Solution

    |

  7. Auto-ionisation of liquid NH(3) is 2NH(3) hArr NH(4)^(o+) +NH(2)^(Th...

    Text Solution

    |

  8. A mixture of weak acid is 0.1M in HCOOH (K(a) = 1.8 xx 10^(-4)) and 0....

    Text Solution

    |

  9. pH of solution made by mixing 50mL of 0.2M NH(4)CI and 75mL of 0.1M Na...

    Text Solution

    |

  10. In the reaction: [Cu(H(2)O)(3)(OH)]^(+) + [AI(H(2)O)(6)]^(3+) to [Cu(H...

    Text Solution

    |

  11. K(a) of HA is 10^(-4). The equilibrium constant for its reaction with ...

    Text Solution

    |

  12. In H(3)PO(4) which of the following is true?

    Text Solution

    |

  13. Three sparigly soluble salts M(2)X, MX,and MX(3) have the same solubil...

    Text Solution

    |

  14. When 0.2M solution of acetic acid is neutralised with 0.2M NaOH in 500...

    Text Solution

    |

  15. A weak acid HX has the dissociation constant 1 xx 10^(-5)M. It forms a...

    Text Solution

    |

  16. The degree of dissociation of weak electrolyde is inversely proportion...

    Text Solution

    |

  17. The degree of dissociation of weak electrolyde is inversely proportion...

    Text Solution

    |

  18. The degree of dissociation of weak electrolyde is inversely proportion...

    Text Solution

    |

  19. Hydrogen ion concentration in mol/ L in a solution of pH = 5.4 will b...

    Text Solution

    |

  20. 40 ml of 0.1 M ammonia is mixed with 20 ml of 0.1 M HCl. What is the p...

    Text Solution

    |