Home
Class 12
CHEMISTRY
A compount AB has a rock type structure ...

A compount `AB` has a rock type structure with `A:B=1:1`. The formula weight of `AB` is `6.023 Y am u` and the closed `A-B` distance is `Y^(1//3) nm.`
`(i)` Find the density of lattice.
`(ii)` If the density of lattice is found to be `20 kg m^(-3)`, then predict the type of defect.

Text Solution

Verified by Experts

(a) Density `= (4xx6.023xx y)/(6.023xx10^(23)xx8xx y xx10^(-27)) ["Since "a=2y^(1//3)]=5xx10^(3)g//m^(3)=5Kg//m^(3)`
(b) Since the density (calculated) `gt` density (observed), it means the defect is metal excess defect.
Promotional Banner

Topper's Solved these Questions

  • SOLID STATE

    FIITJEE|Exercise SOLVED PROBLEMS (OBJECTIVE)|25 Videos

  • SOLID STATE

    FIITJEE|Exercise SOLVED PROBLEMS (OBJECTIVE) REASONING TYPE QUESTIONS|1 Videos

  • SOLID STATE

    FIITJEE|Exercise (SINGLE INTEGER ANSWER TYPE QUESTION)|5 Videos

  • QUALITATIVE ANALYSIS

    FIITJEE|Exercise Single interger answer type|3 Videos

  • STOICHIOMETRY AND BALANCING REDOX REACTION

    FIITJEE|Exercise SINGLE INTEGER ANSWER TYPE QUESTIONS|5 Videos

Similar Questions

Explore conceptually related problems

A compound AB has a rock salt type structure with A:B=1:1 . The formula weight of AB is 6.023 y amu and the closest A-B distance is y^(1//3) nm. Calculate the density of lattice (in kg//m^(3))

The crystal AB (rock salt structure) has molecular weight 6.023Y u , where Y is an arbitrary number in u . If the minimum distance between cation and anion is Y^(1)/(3) nm and the observed density is 20 kg m^(-3) . Find a. The density in kg m^(-3) . and b. The type of defect

The crystal AB (rock salt structure) has molecular weight 6.023 y u, where y is an arbitrary number in u. If the minimum distance between cation and anion is y^(1//2) nm and the observed density is 20kg/ m^(3) , find the (i) density in kg/ m^(3) and (ii) type of defect.

AB crystallizes in a rock salt structure. The nearest distance between A and B is Y^(1//3) nm, where Y is a constant. The molecular mass of AB is "6.023 Y g/mol"^(-1) .Determine the density in kgm^(-3) .

If 1 is a root of the equation ay^(2)+ay+3=0" and "y^(2)+y+b=0 then find the value of ab.

FIITJEE-SOLID STATE-SOLVED PROBLEMS (SUBJECTIVE)
  1. Metallic gold crystallizes in fcc lattice. The length of the cubic un...

    Text Solution

    |

  2. Ferrous oxide (FeO) crystal has a cubic structure and each edge of the...

    Text Solution

    |

  3. The composition of a sample of wustite is Fe(0.93)O(1.00) What percent...

    Text Solution

    |

  4. Potassium crystallizes in body centered cubic lattice with a unit cell...

    Text Solution

    |

  5. A compount AB has a rock type structure with A:B=1:1. The formula weig...

    Text Solution

    |

  6. An element crystallises as face-centred cubic lattice with density as ...

    Text Solution

    |

  7. Calcium crystallizes in a face centred cubic unit cell with a = 0.556 ...

    Text Solution

    |

  8. Radii of A^(+) and that of X^(-) and Y^(-) have been given as A^(+...

    Text Solution

    |

  9. The unit cell cube length for LiCl(just like NaCl structures) is 5.14Å...

    Text Solution

    |

  10. The density of potassium bromide crystal is 2.75 g cm^(-3) and the len...

    Text Solution

    |

  11. When an electron in an excited state of Mo atoms falls from L to K-she...

    Text Solution

    |

  12. The unit cell length of NaCl is observed to be 0.5627 nm by X-ray diff...

    Text Solution

    |

  13. The density of CaO is 3.35xx10^(3)kg*m^(3). This oxide crystallises in...

    Text Solution

    |

  14. Copper has fcc crystal structure. Assuming an atomic radius of 130 pm ...

    Text Solution

    |

  15. A metal crystallizes into two cubic phases, face-centred cubic and bod...

    Text Solution

    |

  16. In a crystalline solid, atom of A form fcc packing and atoms of B occu...

    Text Solution

    |

  17. In face centred cubic (fcc) crystal lattice edge length of the unit ce...

    Text Solution

    |