Home
Class 11
CHEMISTRY
0.984 g of a chloroplatinate salt of a d...

0.984 g of a chloroplatinate salt of a diacid base on ignition gave 0.39 g of platinum. Find the molecular mass of the base.

A

120

B

240

C

180

D

60

Text Solution

Verified by Experts

The correct Answer is:
B
Let B be the original base.
`2B+H_2PtCl_6rarrB_2H_2PtCl_6overset(triangle)toPt`
Ew of `B_2H_2PtCL_6=2B+2+195+6xx35.5`
`=2B+410`
`("weight of chloroplati nate")/("weight of Pt")=("Eq. wt. of salt")/("Eq. wt. of Pt")`
`(0.3)/(0.09)=(2B+410)/(195)`
`B(Ew)` of base `=120`
Molecular weight of base `=Ewxx`acidity
`=120xx2=240`
Promotional Banner

Topper's Solved these Questions

  • PURIFICATION OF ORGANIC COMPOUNDS AND QUALITATIVE AND QUANTITATIVE ANALYSIS

    CENGAGE CHEMISTRY ENGLISH|Exercise Assertion Reasoning Type|5 Videos

  • PURIFICATION OF ORGANIC COMPOUNDS AND QUALITATIVE AND QUANTITATIVE ANALYSIS

    CENGAGE CHEMISTRY ENGLISH|Exercise Multiple Correct Answers Type|10 Videos

  • PERIODIC CLASSIFICATION OF ELEMENTS AND GENERAL INORGANIC CHEMISTRY

    CENGAGE CHEMISTRY ENGLISH|Exercise Exercises (Archives )Subjective|4 Videos

  • REDOX REACTIONS

    CENGAGE CHEMISTRY ENGLISH|Exercise Archives (Integers)|1 Videos

Similar Questions

Explore conceptually related problems

0.400 g of chloroplatinate salt of a monoacid base on ignition gave 0.125 g of platinum. Find the molecular mass of the base.

0.98g of the chloroplatinate salt of some diaacidic base when ignited left 0.39g of platinum as residue. What is the molecular mass of the base ? (At mass of Pt = 195) .

0.759 g of a silver salt of a dibasic organic acid on ignition gave 0.463 g of silver. The molecular mass of the acid is

0.76 g of a silver salt of a dibasic acid on ignition gave 0.54 g of silver. Calculate the molecular mass of the acid.

0.500 g of the silver salt of an organic dibasic acid on ignition gives 0.325 g of pure silver. Find the molecular mass of the acid.

100 cm^3 of a centimolar solution of an acid contain 0.098 g of the acid. Find the molecular mass of the acid.

0.3 g of platinichloride of an organic diacidic base left 0.09 g of platinum on ignition. The molecular weight of the organic base is

0.759 g of silver salt of a dibasic acid was ignited to form 0.463 g of the silver residue. Calculate the molecular mass of the acid.

0.20 g of an anhydrous dibasic acid gave on combustion 0.040 g water and 0.195 g CO_2 .0.5 g of its silver salt on ignition gave 0.355 g of silver. What is the molecular formula of the acid ?

The mass of 11.2 litre of a certain gas at S.T.P. is 24 g. Find the gram molecular mass of the gas.

CENGAGE CHEMISTRY ENGLISH-PURIFICATION OF ORGANIC COMPOUNDS AND QUALITATIVE AND QUANTITATIVE ANALYSIS-Single Correct Answer Type
  1. A mixture of ethylene and excess of H(2) had a pressure of 600 mmHg th...

    Text Solution

    |

  2. In the estimation of nitrogen by Kjeldahl's method 2.8 gm of an organi...

    Text Solution

    |

  3. 0.984 g of a chloroplatinate salt of a diacid base on ignition gave 0....

    Text Solution

    |

  4. 0.5 gm of an organic substance containing prosphorous was heated with ...

    Text Solution

    |

  5. A certain compound has the molecular formula X(4)O(6). If 10 g of X(4)...

    Text Solution

    |

  6. A organic compound contains 4% sulphur. Its minimum molecular weight i...

    Text Solution

    |

  7. Lassaigne's test is used for th detection of:

    Text Solution

    |

  8. In organic layer test CS2 or CCl4 is added to lassaigne's extract and ...

    Text Solution

    |

  9. An organic compound containing sulphur is estimated by Carius method i...

    Text Solution

    |

  10. In Liebig's method for the estimation of C and H, if the compound also...

    Text Solution

    |

  11. In Liebig's method for the estimation of C and H, if the compound also...

    Text Solution

    |

  12. In Liebig's method for the estimation of C and H, if the compound also...

    Text Solution

    |

  13. A compound (60 gm) on analysis gave C=24gm H=4gm and O=32gm, its empir...

    Text Solution

    |

  14. An organic compound contains C = 40% , O = 53.34 % and H = 6.60 % . Th...

    Text Solution

    |

  15. A compound contains C=90% and H=10% Empirical formula of the compound ...

    Text Solution

    |

  16. The empirical formula of a compound is CH2O and its vapour density is ...

    Text Solution

    |

  17. The molecular mass of a compound having empirical formula C2H5O is 90....

    Text Solution

    |

  18. A compound contains 38.8%C,16%H, and 45.2%N The formula of the compoun...

    Text Solution

    |

  19. A compound containing 80% C and 20% H is likely to be: C6 H6 C2 H6...

    Text Solution

    |

  20. An organic compound on analysis gave C=42.8%, H=7.2%, andN=50% volume ...

    Text Solution

    |