Home
Class 12
CHEMISTRY
A weak acid, HA, has a K(a) of 1.00xx10^...

A weak acid, HA, has a `K_(a)` of `1.00xx10^(-5)`. If `0.100` mol of the acid is dissolved in 1 L of water, the percentage of the acid dissociated at equilibrium is the close to

A

`0.100%`

B

`99.0%`

C

`1.00%`

D

`99.9%`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • EQUILIBRIUM

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT (SECTION -D)|20 Videos
  • EQUILIBRIUM

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT (SECTION -B)|35 Videos
  • ENVIRONMENTAL CHEMISTRY

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT (SECTION-D) (Assertion - Reason Type Questions)|4 Videos
  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (Section-D) Assertion-Reason Type Question|15 Videos

Similar Questions

Explore conceptually related problems

The weak acid, HA has a Ka of 1.00× 10^(−7) . If 0.1 mol of this acid is dissolved in one litre of water, the percentage of acid dissociated at equilibrium is closet to:

The weak acid, HA has a Ka of 1× 10^(−1) . If 0.1 mol of this acid is dissolved in one litre of water, the percentage of acid dissociated at equilibrium is closet to:

The weak acid, HA has a Ka of 1× 10^(−3) . If 0.1 mol of this acid is dissolved in one litre of water, the percentage of acid dissociated at equilibrium is closet to:

The weak acid, HA has a Ka of 1× 10^(−9) . If 0.1 mol of this acid is dissolved in one litre of water, the percentage of acid dissociated at equilibrium is closet to:

At infinite dilution, the percentage dissociation of both weak acid and weak base is:

An acid-base indicator has a K_(a) = 3.0 xx 10^(-5) . The acid form of the indicator is red and the basic form is blue. Then

An acid-base indicator has K_(a) = 3.0 xx 10^(-5) . The acid form of the indicator is red and the basic form is blue. Then:

A weak acid HX has the dissociation constant 1 xx 10^(-5)M . It forms a salt NaX on reaction with alkali. The percentage hydrolysis of 0.1M solution of NaX is

A weak acid HX has the dissociation constant 1 xx 10^(-5)M . It forms a salt NaX on reaction with alkali. The percentage hydrolysis of 0.1M solution of NaX is

A certain weak acid has K_(a)=10^(-5). If the equilibrium constant for a reaction with a strong base is represented as 1xx10^(y) then find the value of y.

AAKASH INSTITUTE ENGLISH-EQUILIBRIUM-ASSIGNMENT (SECTION -C)
  1. The following equilibrium constants are given N2+3H2 harr 2NH3,K1 ...

    Text Solution

    |

  2. Calculate the pOH of a solution at 25^(@)C thatcontains 1xx10^(-10)M o...

    Text Solution

    |

  3. A weak acid, HA, has a K(a) of 1.00xx10^(-5). If 0.100 mol of the acid...

    Text Solution

    |

  4. Which one of the following anions species has the greatest proton af...

    Text Solution

    |

  5. For the reaction CH(4(g))+2O(2(g))hArrCO(2(g))+2H(2)O(l): (DeltaH=-1...

    Text Solution

    |

  6. Which of the following pairs constitutes a buffer ?

    Text Solution

    |

  7. The hydrogen ion concentration of a 10^(-8) M HCl aqueous solution at ...

    Text Solution

    |

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

    Text Solution

    |

  9. Equilibrium constants K(1) and K(2) for the following equilibria NO(...

    Text Solution

    |

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

    Text Solution

    |

  11. The dissociation constant of a weak acid is 1 xx 10^(-4). In order of ...

    Text Solution

    |

  12. Which one of the following is not acid-base conjugate pair ?

    Text Solution

    |

  13. For the reaction, I(2)(aq)hArrI(2)" (oil), Equilibrium constant is K...

    Text Solution

    |

  14. Given exothermic reaction CoCl4^(2-)(aq)+6H2O(l) hArr [Co(H2O)6]^(2+...

    Text Solution

    |

  15. For preparing a buffer solution of pH = 7.0 which buffer system you wi...

    Text Solution

    |

  16. For a chemical reaction of the type AhArrB, K=2.0 and BhArrC, K=0.01. ...

    Text Solution

    |

  17. A solution is 0.10 M in Ag^(+), Ca^(2+), Mg^(2+) and Al^(3+) ions. Whi...

    Text Solution

    |

  18. Which one of the following species acts only as a base ?

    Text Solution

    |

  19. At 100^@C the Kw of water is 55 times its value at 25^@C . What will b...

    Text Solution

    |

  20. Which of the following is most soluble ?

    Text Solution

    |