Question

How many grams of magnesium(Mg, 24.30 g/mol) are in 7.43×10^22 atoms Mg?

Answer 1

Answer : The mass of magnesium is, 2.99 grams.

Explanation :

As we know that 1 mole of magnesium contains
`6.022* 10^(23)` atoms

And, 1 mole of magnesium has 24.30 g

So, we can say that:

As,
`6.022* 10^(23)` atoms of magnesium present in 24.30 gram of magnesium

So,
`7.43* 10^(22)` atoms of magnesium present in
`(7.43* 10^(22))/(6.022* 10^(23))* 24.30=2.99` gram of magnesium

Therefore, the mass of magnesium is, 2.99 grams.