CBSE Class 11-science Answered
calculate the mass of Mg.................
Asked by | 21 Aug, 2008, 11:52: PM
Expert Answer
23 g of Na contains = 6.023 x 1023atoms
1gof Na contains = 6.023 x 1023/ 23atoms
2.3gof Na contains = 6.023 x 1023/ 23atoms X 2.3
=6.023x 1022atoms = Mg atoms
so, if 6.023x 1023atoms have =24 g
in 6.023x 1022atoms mass = 24 x 6.023x 1022atoms / 6.023 x 1023
= 2.4g
Answered by | 22 Aug, 2008, 02:45: PM
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