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WAEC - Chemistry (1989 - No. 22)
Given that 1 mole of carbon -12 weighs 12.0g, how many atoms are there in 24.0g magnesium? (C = 12, Mg = 24, NA = 6.02 x 10
23
mol
-1
)
1/2 x 6.02 x 10
23
1 x 6.02 x10
23
2 x 6.02 x 10
23
3x 6.02 x 10
23
4x 6.02 x 10
23
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