Home
Class 11
CHEMISTRY
H2O+H3PO4iffH(H3O)^++H2(PO4)^-, pK1=2.15...

`H_2O+H_3PO_4iffH_(H_3O)^++H_2(PO_4)^-, pK_1=2.15`
`H_2O+H_2PO_4^-iffH_(H_3O)^++H(PO_4)^(2-) pK_2 =7.20`
Hence, pH of 0.01 M `NaH_2PO_4` is

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • ENVIRONMENTAL CHEMISTRY

    PATHFINDER|Exercise QUESTION BANK|157 Videos

  • GOC-II & III

    PATHFINDER|Exercise QUESTION BANK|144 Videos

Similar Questions

Explore conceptually related problems

H_3PO_4 (Phosphoric acid) is a tribasic acid. In aqueous solution it ionises in the following three steps H_3PO_4overset(k_1)iffH^++H_2PO_4^- , H_2PO_4^(-)overset(k_2)iffH^++HPO_4^(2-) , HPO_4^(2-)overset(k_3)iffH^++PO_4^(3-) . Here K_1,K_2,K_3 are the dissociation constants of the respective three steps. The correct order of the values of three constants is

P_(4) + 3NaOH + 3H_(2) O to 3NaH_(2)PO_(2) + PH_(3) is a -

Calculate pH of 1 M PO_4^-3) (aq) solution. pk_b(PO_4^-3) = 1.62

What is the basicity of H_(3)PO_(4) ?

H_(3)PO_(3) is a _______acid.

N_(2)H_(4) and H_(2)O_(2) show similarity in

Explain- H_(3)PO_(2) is a strong reducing agent.

PATHFINDER-EQUILIBRIUM-QUESTION BANK
  1. Which of the following solution will have pH value close to 1.0 ?

    Text Solution

    |

  2. The pH of an aqueous solution of a 0.1 M solution of weak monoprotic a...

    Text Solution

    |

  3. H2O+H3PO4iffH(H3O)^++H2(PO4)^-, pK1=2.15 H2O+H2PO4^-iffH(H3O)^++H(PO4)...

    Text Solution

    |

  4. An acid solution of pH=6 is diluted thousand times. The pH of solution...

    Text Solution

    |

  5. A solution of contains 0.1 M H2S and 0.3 M HCl, Calculate the conc. Of...

    Text Solution

    |

  6. To what volume must one litre of 1MCH3COOH solution be diluted so that...

    Text Solution

    |

  7. An aqueous solution contains 10 % ammonia by mass and has density of 0...

    Text Solution

    |

  8. A solution of HCl is diluted so that its pH changes by 0.3. How much c...

    Text Solution

    |

  9. 1 ml of 0.1 M HCl is added into 99 ml of water. Assume volumes are add...

    Text Solution

    |

  10. 20 mL of 0.2 M sodium hydroxide is added to 50 mL of 0.2 M acetic acid...

    Text Solution

    |

  11. A weak acid HX has the dissociation constant 1xx10^-5M. It forms a sal...

    Text Solution

    |

  12. The pH of 0.02 M solution of ammonium chloride at 25^@C is [kb(NH3)=1....

    Text Solution

    |

  13. Which one is more acidic in aqueous solutions?

    Text Solution

    |

  14. In a buffer solution containing equal concentration of B^- and HB, the...

    Text Solution

    |

  15. A 40 mL solution of weak base, BOH, is titrated with 0.1 N HCl solutio...

    Text Solution

    |

  16. 0.1 mole of CH3NH2 (Kb=5xx10^-4) is mixed with 0.08 mole of HCl and di...

    Text Solution

    |

  17. A buffer solution contains 100 mL of 0.01 M CH3COOH and 200 mL of 0.02...

    Text Solution

    |

  18. In which of the following solvents, will AgBr have have highest solubi...

    Text Solution

    |

  19. M(OH)x has K(sp)=4xx10^-12 and solubility 10^-4 M. hence x is:

    Text Solution

    |

  20. The solubility products of Al(OH)3 and Zn(OH)2 are 8.5xx10^-23 and 1.8...

    Text Solution

    |