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 23mol-1)
a
1/2 x 6.02 x 10 23
b
1 x 6.02 x10 23
c
2 x 6.02 x 10 23
d
3x 6.02 x 10 23
e
4x 6.02 x 10 23
Explanation
Correct Option
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Discussions (2)
Onyi2008
1 year ago
Also the formula is
Mole= number of particles ÷6.02×10^23
particles can either be atoms,electrons, protons etc
Parameters given:
Mole=1
Number of atoms(particles)=?
Avogadro's Constant=6.02×10^23
That is;
1=?÷6.02x10^23
cross multiply
the final answer is
1×6.02×10^23
DestinyagegeDY
6 years ago
24*6.02*10^23=144.48*10^23
144.48*10^23/24=6.02*10^23
therefore 1*6.02*10^23 final answer
