Home
Class 11
CHEMISTRY
The edge length of the unit cell of NaCl...

The edge length of the unit cell of `NaCl` crystal lattice is `5.623Å`, density is `2.16` g `cm^(-3)` and the molar mass of `NaCl` is `58.5` g `"mol"^(-1)`. The number of moles per unit cell is

A

4

B

3

C

1

D

2

Text Solution

Verified by Experts

The correct Answer is:
A
`Z=(rhoa^(3)N_(A))/M`
`=(2.16times(5.623times10^(-8))^(3)times6.02times10^(23))/58.5`
= `3.95approx4`.
Promotional Banner

Topper's Solved these Questions

  • STATES OF MATTER (SOLID STATE CHEMISTRY)

    DINESH PUBLICATION|Exercise REVISION QUESTIONS FROM COMPETITIVE EXAMS|104 Videos

  • STATES OF MATTER (SOLID STATE CHEMISTRY)

    DINESH PUBLICATION|Exercise SELECTED STRAIGHT OBJECTIVE TYPE MCQs|23 Videos

  • STATES OF MATTER (SOLID STATE CHEMISTRY)

    DINESH PUBLICATION|Exercise ULTIMATE PREPARATORY PACKAGE|21 Videos

  • STATE OF MATTER (GASEOUS AND LIQUID STATE)

    DINESH PUBLICATION|Exercise Ulitmate Preparatory package|20 Videos

  • STATES OF MATTER : GASES AND LIQUIDS

    DINESH PUBLICATION|Exercise Statement Type Question|5 Videos

Similar Questions

Explore conceptually related problems

Number of unit cells in 10 g NaCl

A unit cell of NaCl has 4 formula units. Its edge length is 0.50 nm. Calculate the density if molar mass of NaCl = 58.5 g/mol.

If the unit cell edge length of NaCl crystal is 600 pm, then the density will be

The number of unit cells in 58.5 g of NaCl is nearly

the number of tetrahedral voids per unit cell in NaCl crystal is ………… .

The number of NaCl molecules in unit cell of its crystal is

DINESH PUBLICATION-STATES OF MATTER (SOLID STATE CHEMISTRY)-MULTIPLE CHOICE QUESTIONS
  1. The coordination number of (Sr^(2+))=113 pm and r(F^(-))=136 pm, is

    Text Solution

    |

  2. An element has a bcc structure with a celledge of 288 pm. The density ...

    Text Solution

    |

  3. The edge length of the unit cell of NaCl crystal lattice is 5.623Å, de...

    Text Solution

    |

  4. A metallic element has a cubic lattice. Each edge of the unit cell is ...

    Text Solution

    |

  5. A metallic element crystallizes in simple cubic lattice. Each edge len...

    Text Solution

    |

  6. The edge length of a cube is 400 pm .its body diagonal would be

    Text Solution

    |

  7. In a cubic lattice each edge of the unit cell is 400 pm. Atomic weigth...

    Text Solution

    |

  8. Vilume occupied for a cubic close packed lattice of sphere is

    Text Solution

    |

  9. A compound formed by elements A and B crystallises in cubic structure...

    Text Solution

    |

  10. An alloy of copper, silver and gold is found to have copper forming th...

    Text Solution

    |

  11. A solidA^(+)B^(-) has a body centred cubic structure. The distance of ...

    Text Solution

    |

  12. Sodium metal crystallizes in body centred cubic lattice with the cell ...

    Text Solution

    |

  13. In diamond, each carbon atom is bonded to four other carbon atoms tetr...

    Text Solution

    |

  14. Analysis shows that an oxide ore of nickel has formula Ni(0.98) O(1.00...

    Text Solution

    |

  15. The composition of a sample of wrustite is Fe(0.93)O(1.00).Percentage ...

    Text Solution

    |

  16. A metal oxide crystallise in a hexagonal close packed array of oxide i...

    Text Solution

    |

  17. The radius of the bromide ion is 0.182 nm. According to the radius rat...

    Text Solution

    |

  18. Aluminium crystallises in c.c.p. structure. Metallic radius of alumini...

    Text Solution

    |

  19. An element crystallises in a b.c.c. lattice. Nearest and next nearest ...

    Text Solution

    |

  20. The radius of a divaent cation A^(2+) is 94pm and of divalent anion B^...

    Text Solution

    |