What molar quantity is represented by 3.011×1023⋅magnesium atoms?

2 Answers
anor277
Dec 29, 2017

If I have a half a dozen magnesium atoms, how many atoms would that be?

Explanation:

And this question is PRECISELY the same as the one you asked EXCEPT that we use the dozen as our metric instead of the Avocado number, i.e. NA=6.022×1023⋅mol−1

And so we take the product...

6.022×1023⋅mol−1×0.5⋅mol≡3.011×1023⋅magnesium atoms. You know the mass of this quantity....

yagmur · Stefan V.
Dec 29, 2017

3.01×1023 atoms.

Explanation:

6.02×1023 (Avogadro's constant) indicates the number of atoms in a mole of any element, so basically:

1 mole of Mg → 6.02×1023 atoms
0.5 moles of Mg → ? atoms

So

0.5 moles×6.02×1023atoms1 mole

which equals to half of Avogadro's constant.

Related questions
See all questions in The Mole
Impact of this question
9566 views around the world
You can reuse this answer
Creative Commons License