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JAMB - Chemistry (2012 - No. 2)
How many atoms are present in 6.0g of magnesium?
[Mg = 24, N
A
= 6.02 x 10
23
mol
-1
]
1.20 x 10
22
2.41 x 10
22
1.51 x 10
23
3.02 x 10
23
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