Home
Class 11
CHEMISTRY
The weight percentage of iron in heamo-g...

The weight percentage of iron in heamo-globin is 0.33. If the approximate molecular weight of heamoglobin is 68000, how many iron atoms are present in the molecule? (At.wt. of Fe is 56) 

Text Solution

Verified by Experts

100 parts of heamoglobin = 0.33 parts iron
68000 parts of heamoglobin = ?
Weight of Fe in heamoglobin = `(68000)/(100)xx0.33 = 224gm`
56 g of Fe = one Fe
224g of Fe = ?
Number of iron atoms `= (224)/(56) = 4`
Promotional Banner

Topper's Solved these Questions

  • STOICHIOMETRY

    AAKASH SERIES|Exercise EXERCISE -1.1.1|3 Videos

  • STOICHIOMETRY

    AAKASH SERIES|Exercise EXERCISE -1.1.2|6 Videos

  • STOICHIOMETRY

    AAKASH SERIES|Exercise Objective Exercise -3|14 Videos

  • STATES OF MATTER

    AAKASH SERIES|Exercise OBJECTIVE EXERCISE -3|19 Videos

Similar Questions

Explore conceptually related problems

Haemoglobin contains 0.33% iron (Fe=56). The molecular weight of haemoglobin is 68000. The number of iron atoms in one molecule of haemoglobin is .

An enzyme contains 2% of sulphur. The molecular weight of the Enzyme is 6400. How many sulphur atoms are present in that enzyme molecule?

0.1 moles of Hydrocaron on complete combustion produced 17.6 gms of CO_(2) . How many Carbon atoms are present in each molecule of the hydrocarbon.

How many molecules of glucose are present in 5.23g of glucose (Molecular weight of glucose 180 u).

Unit cell of silver (at wt. 108) has a density 10.5 g cc^(-1) The crystal is cubic with edge length 4.09 A^0 . How many silver atoms are present in unit cell of the metal?

The weight of methane which occupies the same volume at STP as 7.5 gmof ethane is _________g .A compound contains 40% carbon 6.6% hydrogen and the rest oxygen. If 100 ml of its decimolar solution contains 1.8 gms of its how many emperical units are present in its molecule?

Unit cell of silver (at wt. 108) has a density 10.5 g c c^(-1) . The crystal is cubic with edge length 4.09 A^(0) . How many silver atoms are present in unit cell of the metal ?

AAKASH SERIES-STOICHIOMETRY-PROBLEMS
  1. 3.011xx10^(22) molecules are removed from a vessel Containing 1680 cc ...

    Text Solution

    |

  2. An orgainc compound has 8 percent of sulphur by weight. What is its mo...

    Text Solution

    |

  3. The weight percentage of iron in heamo-globin is 0.33. If the approxim...

    Text Solution

    |

  4. What is the percent weight composition of water in plaster of paris?

    Text Solution

    |

  5. 0.2g of an organic compound on analysis give 0.147g of carbondioxide, ...

    Text Solution

    |

  6. On heating 0.2g of an organic compound with a mixture of barium chlori...

    Text Solution

    |

  7. An organic compound contains carbon, hydrogen, oxygen and nitrogen in ...

    Text Solution

    |

  8. A compound contains 26.57% potassium, 35.36% chromium and the remainin...

    Text Solution

    |

  9. Combustion of 0.202 g of a carbon compound gave 0.361 g of carbon diox...

    Text Solution

    |

  10. A brominated alkane an analysis gave 12.8% carbon and 2.1%H. If its va...

    Text Solution

    |

  11. A compound has molar of 98.98g. The analysis gave 24.27%C, 4.07%H and ...

    Text Solution

    |

  12. Derived unit is

    Text Solution

    |

  13. How many mL is one m^(3) ?

    Text Solution

    |

  14. How many significant figures are these in Avogadro constant?

    Text Solution

    |

  15. Add 18.11, 12.0 and 2.021 and report the result in significant figures...

    Text Solution

    |

  16. Round off the following to report each in three significant figures : ...

    Text Solution

    |

  17. A m^(3) vessel at STP has oxygen gas. How many moles of oxygen are pre...

    Text Solution

    |

  18. How many seconds are there in 7 days?

    Text Solution

    |

  19. How many grams of 80% pure marble stone on calcination can give 14 gra...

    Text Solution

    |

  20. 10 grams of a hydrated sodium carbonate, Na(2)CO(3).xH(2)O, on strong ...

    Text Solution

    |