The molar mass of magnesium (Mg) is 24.30 g/mol. There are 6.02 x 10^23 atoms in 1 mol. How many atoms are present in 48.60 g of Mg?

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aFany1Mocatxx aFany1Mocatxx

23-06-2016
Chemistry

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The molar mass of magnesium (Mg) is 24.30 g/mol. There are 6.02 x 10^23 atoms in 1 mol. How many atoms are present in 48.60 g of Mg?

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JoshEast JoshEast · Answer 1 · 2016-06-24T03:52:26+02:00

JoshEast JoshEast

24-06-2016

Atoms of Mg = mol * L

mol of Mg = [tex] \frac{MASS}{MOLAR MASS} [/tex]

= [tex] \frac{48.60 g}{24.30 g / mol} [/tex]

= 2 mol

∴ atoms of Mg = 2 mol * ( 6.02 x 10²³)
= 1.204 x 10²⁴

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