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CBSE Class 12 Chemistry 2014 Delhi Set 1 Solved Paper

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Question : 9
Total: 30
An element with density 11.2‌gm‌cm−3 forms f.c.c. lattice with edge length 4×10−8‌cm. Calculate the atomic mass of the element. (Given NA=6.022× 1023mol−1 )
Solution:  
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