Home
Class 12
CHEMISTRY
What is the hydronium ion concentration ...

What is the hydronium ion concentration of a 0.25 M HA solution `(K_(a)=4xx10^(-8))`

A

`10^(-4)`

B

`10^(-5)`

C

`10^(-7)`

D

`10^(-10)`

Text Solution

Verified by Experts

The correct Answer is:
A
`underset(cong0.25)underset(0.25-x)underset(0.25)(HA)hArrunderset(x)(H^(+))+underset(x)(A^(-))`
`4xx10^(-8)=(x^(2))/(0.25)`
`x^(2)=4xx(25)/(100)xx10^(-8)`
`x=10^(-4)`
`x=[H^(+)]=10^(-4)`
Promotional Banner

Topper's Solved these Questions

  • STOICHIOMETRY AND BALANCING REDOX REACTION

    FIITJEE|Exercise SINGLE INTEGER ANSWER TYPE QUESTIONS|5 Videos

  • THERMODYNAMICS AND THERMOCHEMISTRY

    FIITJEE|Exercise SINGLE INTEGER ANSWER TYPE QUESTIONS|5 Videos

Similar Questions

Explore conceptually related problems

What is the ionization constant of an acid if the hydronium ion concentration of a 0.40 M solution is 1.40xx10^(-4) M?

What is the approximate OH^(-) ion concentration of a 0.150M NH_(3) solution? (K_(b)=1.75xx10^(-5))

The hydrogen ion concentration of a 0.006 M benzoic acid solution is (K_(a) = 6 xx 10^(-5))

An acid HA is 40% dissociated in an aqueous solution. The hydronium ion concentration of its 0.2M solution would be

Calculate the hydronium ion concentration in 50.0 mL of 0.10 M NaH_2AsO_4 . ( K_1=6.0xx10^(-3),K_2=1.1xx10^(-7),K_3=3.0xx10^(-12) )

What is the OH^(-) concentration of a 0.08 M solution of [K_(a)(CH_(3)COOH)=1.8 xx 10^(-5)]

What concentration of acetic acid is needed to give a hudrogen ion concentration of 3.5xx10^(-4) M ? (K_(a)=1.8xx10^(-5)) ?

FIITJEE-TEST PAPERS-CHEMISTRY
  1. Consider the partial decomposition of A as 2A(g)hArr2B(g)+C(g) At eq...

    Text Solution

    |

  2. The equilibrium constant K(P) for the reaction N(2)O(4)(g) hArr 2NO(2)...

    Text Solution

    |

  3. What is the hydronium ion concentration of a 0.25 M HA solution (K(a)=...

    Text Solution

    |

  4. In a saturated solution of AgCl, NaCl is added gradually the concentra...

    Text Solution

    |

  5. A solution is 0.01 M Kl and 0.1 M KCl. If solid AgNO(3) is added to th...

    Text Solution

    |

  6. Solubility of AgCl in 0.2 M NaCl is x and that in 0.1 M AgNO(3) is y. ...

    Text Solution

    |

  7. The incorrect order of bond angle

    Text Solution

    |

  8. All fluorine atoms are in same plane in

    Text Solution

    |

  9. Consider a P(y) orbital of an atom and identify correct statement

    Text Solution

    |

  10. The set of d-orbitlas which do not contain any d-orbital which is invo...

    Text Solution

    |

  11. Select the correct order of hydration energy of ions?

    Text Solution

    |

  12. Decomposition temperature of CaCO(3)(s) is approximately 900^(@)C. Whi...

    Text Solution

    |

  13. Select the correct order of basic strength?

    Text Solution

    |

  14. Be and Mg have zero value of electron affinity, because

    Text Solution

    |

  15. Out of N, O, Ne, Na, Na^(+) select the species which have maximum and ...

    Text Solution

    |

  16. The correct ionic radii order is

    Text Solution

    |

  17. Boron compound behave as Lewis acid because of

    Text Solution

    |

  18. H(3)BO(3) is.

    Text Solution

    |

  19. Graphite is soft solid lubricant extreamly to melt. The reason for thi...

    Text Solution

    |

  20. The reaction 5H(2)O(2)+XClO(2)+2OH^(-) rarr XCl^(-)+YO(2)+6H(2)O i...

    Text Solution

    |