Home
Class 12
CHEMISTRY
A bcc element (atomic mass 65) has a cel...

A bcc element (atomic mass 65) has a cell edge of 420 pm. Calculate its density in g/`cm^3`

A

`2.25 g cm^(-3)`

B

`2.97 gcm^(-3)`

C

`2.84 g cm^(-3)`

D

`2.91 gcm^(-3)`

Text Solution

Verified by Experts

The correct Answer is:
D
`therefore rho = (2 xx 65)/((420 xx 10^(-10))^3 xx 6.023 xx 10^23)`
` = (2 xx 65 xx 10^4)/((42)^3 xx 6.023)`
` = 2.91 gcm^(-3)`
Promotional Banner

Topper's Solved these Questions

  • THE SOLID STATE

    ICSE|Exercise MULTIPLE CHOICE QUESTIONS (Structure based questions)|6 Videos

  • THE SOLID STATE

    ICSE|Exercise MULTIPLE CHOICE QUESTIONS (Assertion-Reason based questions)|10 Videos

  • THE SOLID STATE

    ICSE|Exercise MULTIPLE CHOICE QUESTIONS (Match the following)|1 Videos

  • SURFACE CHEMISTRY

    ICSE|Exercise ISC EXAMINATION QUESTIONS |4 Videos

Similar Questions

Explore conceptually related problems

A bcc element (atomic mass 65) has cell edge of 420 pm. Calculate its density in g cm^(-3) .

A face-centred cubic element (atomic mass 60 ) has a cell edge of 400 pm. What is its density?

A face-centred cubic element (atomic mass 60 ) has a cell edge of 400 pm. What is its density?

An element exists in bcc lattice with a cell edge of 288 pm. Calculate its molar density is 7.2g//cm^(3)

An element crystallises in fcc lattice with cell edge of 400 pm. Calculate its density if 250 g of this element contain 2.5 xx 10^(24) atoms.

An element crystallizes in a f.c.c. lattice with cell edge of 250 pm. Calculate the density if 300 g of this element contain 2 xx 10^(24) atoms.

A body centred cubic element of density, 10.3 g cm^(-3) has a cell edge of 314 pm. Calculate the atomic mass of the element. ( N_A = 6.023 xx 10^(23) mol^(-1) )

An element occurs in bcc structure. It has a cell edge length of 250pm. Calculate the molar mass if its density is 8.0g cm^(-3) . Also calculate the radius of an atom of this element.

An element of atomic mass 40 occurs in fcc structure with a cell edge of 540 pm. Calculate the Avogadro's number if density is 1.7gm//cm^(3) .