Question

In a sample of carbon dioxide, there is a `3.2*g` with respect to oxygen...what is the mass of carbon dioxide?

Answer 1

Approx....`4.4*g........`

Explanation:

There are `(3.2*g)/(16.00*g*mol^-1)=0.20*mol` WITH RESPECT TO OXYGEN atoms (note the distinction between oxygen atoms and oxygen molecules).

And THUS WITH RESPECT TO CARBON DIOXIDE we need a `0.10*mol` quantity of carbon dioxide (in as much as each mole of carbon dioxide supplies 2 mol of oxygen atoms)....

And so `0.10*molxx44.01*g*mol^-1=4.40*g` of carbon dioxide.....