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CBSE Class 12 Chemistry 2014 Outside Delhi Set 1 Solved Paper

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Question : 9
Total: 30
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= 6.022 ×1023 mol−1 )
Solution:  
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