Question

Mole conversions: 1) How many g Ne are in 1.44*10^24 atoms Ne?

Answer 1

Around `48.3` grams of neon.

Explanation:

We first convert to moles of neon atoms. One mole of neon atoms contains `6.02*10^23` neon atoms.

And so,

`(1.44*10^24color(red)cancelcolor(black)(Ne \ "atoms"))/(6.02*10^23color(red)cancelcolor(black)(Ne \ "atoms")"/mol")=2.39202657807 \ "mol"`

I would not round off yet until the final answer.

Now, we multiply by neon's molar mass to get the amount in grams.

Neon has a molar mass of `20.1797 \ "g/mol"`.

So here, we get:

`2.39202657807color(red)cancelcolor(black)"mol"*(20.1797 \ "g")/(color(red)cancelcolor(black)"mol")~~48.3 \ "g"`