Question

How many moles are in 75.0 g of dinitrogen trioxide, `N_2O_3`?

Answer 1

`~~0.987` moles

Explanation:

To find the number of moles when given the mass of the substance, we divide the mass of the sample by its molar mass.

So, we get:

`n_(N_2O_3)=(75color(red)cancelcolor(black)"g")/(76.01color(red)cancelcolor(black)"g""/mol")`

`~~0.987 \ "mol"`