An element with density 2.8\ {g cm}^{-3} ...

CBSE Class 12 Chemistry 2014 Outside Delhi Set 1 Solved Paper

Question : 9 of 30

Marks: +1, -0

An element with density

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

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

4 \times 10^{-8}\ \text{cm}

. Calculate the molar mass of the element. (Given

N_{A}=6.022

\times 10^{23}\ \text{mol}^{-1}

)

Solution:

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