6.02 x 10 23
3.01 x 1022
6.02 x 1022
5. 08 x 1022
3.01 x 1022
Correct answer is C
27g Aluminium = 6.02×1023
1g Al = 6.02×102327
2.7g Al = 6.02×102327×2.7
= 6.02×1022Al atoms
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