An element with density 2.8 { g} { cm}^{-3} forms a f.c.c. unit cell with edge length 4 \\times10^{-8} { cm}. Calculate the molar mass of the element. (Given {N}_{ {A}}= {6 . 0 2 2} \\times10^{23} { mol}^{-1} )

CBSE Class 12 Chemistry 2014 Outside Delhi Set 1 Solved Paper

Question : 9 of 30

Marks: +1, -0

An element with density

2.8 \ { g} \ { cm}^{-3}

forms a f.c.c. unit cell with edge length

4 \×10^{-8} \ { cm}

. Calculate the molar mass of the element. (Given

\ {N}_{\ {A}}=\ {6 . 0 2 2}

\×10^{23} \ { mol}^{-1}

)

Solution:

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