Home
Class 11
CHEMISTRY
What can be permitted concentration of A...

What can be permitted concentration of `Ag^(+) ions ` in 0.1 M HCN solution buffered at pH =3 without causing precipitation of AgCN.
`K_(sp) " of " AgCN =1.2 xx 10 ^(-16) ,K_a " of " HCN = 4.8 xx 10^(-10 ) `

A

`1.6 xx 10 ^(-5) M`

B

` 2.5 xx 10^(-9) M`

C

` 8.0 xx 10^(-6) M`

D

` 1. 65 xx 10^(-6) M`

Text Solution

Verified by Experts

The correct Answer is:
B
` [Ag^(+) ] [CN^(-) ] lt Ksp , ([H^(+)][CN^(-) ])/( [HCN]) =Ka`
` rArr (10 ^(-3) xx [CN^(-) ])/( (0.1) ) =4.8 xx 10 ^(-10) `
`rArr [CN^(-) ] =4.8 xx 10 ^(-8) `
` rArr [Ag^(+)] =(1.2 xx 10 ^(-16))/( 4.8 xx 10 ^(-8) ) = 2.5 xx 10 ^(-9) `
Promotional Banner

Topper's Solved these Questions

  • IONIC EQUILIBRIUM

    AAKASH SERIES|Exercise PRACTICE SHEET (EXERCISE -IV LEVEL -I (ADVANCED) (More than One correct answer Type Questions))|10 Videos

  • IONIC EQUILIBRIUM

    AAKASH SERIES|Exercise PRACTICE SHEET (EXERCISE -IV LEVEL -I (ADVANCED) (Linked Comprehension Type Questions))|6 Videos

  • IONIC EQUILIBRIUM

    AAKASH SERIES|Exercise PRACTICE SHEET (EXERCISE -IV LEVEL -I (MAIN) (Straight Objective Type Questions))|24 Videos

  • HYDROGEN AND ITS COMPOUNDS

    AAKASH SERIES|Exercise QUESTIONS FOR DESCRIPTIVE ANSWERS|20 Videos

  • ISOMERISM

    AAKASH SERIES|Exercise ADDITIONAL PRACTICE EXERCISE ( PRACTICE SHEET (ADVANCED) INTEGER TYPE QUESTIONS)|10 Videos

Similar Questions

Explore conceptually related problems

The solubility of AgCl in 0.1M NaCI is (K_(sp) " of AgCl" = 1.2 xx 10^(-10))

What is the maximum concentration of Mg^(+2) that can be introduced into a solution containing 0.1 M NH_3 and 0.01 M NH_4^(+ ) without causing precipitation of Mg (OH)_2 ? K_b of NH_3 = 10^(6) K_(sp) of Mg(OH)_2 =1.2 xx 10^(-12)

The P^(H) of an aqueous solution of NH_4 CN( K_a of HCN is 9.2 xx 10^(-10) & K_b of NH_4 OH is 1.8 xx 10^(-5))

Sparingly soluble salts maintains their solubility product value in their saturated solutions irrespective of the sources of the ions . What is the solubility of MgCl_2 (gm// L) in a 0.01 M KOH solution without causing precipitation of Mg(OH)_2 ? K_(sp) " of " Mg (OH)_2 = 2xx 10^(8)

A solution of 0.01 MCd^(2+) contains 0.01M NH_4OH. What conc. Of NH_4^(+) from NH_4Cl is necessary to prevent precipitation of Cd( OH)_2? K_(sp) " of " (OH)_2 =2.0 xx 10^(-14) ,K_b " of " NH_4 OH = 1.8 xx 10^(-5) if answer is 1.272 xx 10^(-x) mol/litre then x=________?

What is the concentration of CN^(-) ions in a solution with 0.1 M HCl and 0.01 M HCN where K_a of HCN is 10 ^(-6) ?

AAKASH SERIES-IONIC EQUILIBRIUM -PRACTICE SHEET (EXERCISE -IV LEVEL -I (ADVANCED) (Straight Objective Type Questions))
  1. A saturated solution of o- nitrophenol has a pH equal to 4.53 then its...

    Text Solution

    |

  2. In the lollowing reuction. AgCl +KI hArr KCl + Agl. As Kl is added, t...

    Text Solution

    |

  3. K(Sp) of MX =K(sp) " of " MX2. Which is more soluble ?

    Text Solution

    |

  4. The solubility of solid silver chromate. Ag(2) CrO(4) . is determined ...

    Text Solution

    |

  5. The maximum pH of a solution which is 0.10 M in Mg ^(2+ ) from which...

    Text Solution

    |

  6. What will be the result if 100 mlL of 0.06 M Mg(NO(2))(2) is added to ...

    Text Solution

    |

  7. What can be permitted concentration of Ag^(+) ions in 0.1 M HCN solu...

    Text Solution

    |

  8. When HCl gas is passed through a saturated solution of common salt, pu...

    Text Solution

    |

  9. How do we differentiate between Fe^(3+) and Cr^(3+) in group III ?

    Text Solution

    |

  10. Why only As^(+3) gets precipitated as As(2) S(3) and not Zn^(2+) as ...

    Text Solution

    |

  11. A saturated solution of o- nitrophenol has a pH equal to 4.53 then its...

    Text Solution

    |

  12. In the lollowing reuction. AgCl +KI hArr KCl + Agl. As Kl is added, t...

    Text Solution

    |

  13. K(Sp) of MX =K(sp) " of " MX2. Which is more soluble ?

    Text Solution

    |

  14. The solubility of solid silver chromate. Ag(2) CrO(4) . is determined ...

    Text Solution

    |

  15. The maximum pH of a solution which is 0.10 M in Mg ^(2+ ) from which...

    Text Solution

    |

  16. What will be the result if 100 mlL of 0.06 M Mg(NO(2))(2) is added to ...

    Text Solution

    |

  17. What can be permitted concentration of Ag^(+) ions in 0.1 M HCN solu...

    Text Solution

    |

  18. When HCl gas is passed through a saturated solution of common salt, pu...

    Text Solution

    |

  19. How do we differentiate between Fe^(3+) and Cr^(3+) in group III ?

    Text Solution

    |

  20. Why only As^(+3) gets precipitated as As(2) S(3) and not Zn^(2+) as ...

    Text Solution

    |