Question

What is the maximum amount of CO2 which could be formed from 14.49 g of CO and 0.13 mol of O2?

Answer 1

We (i) write a stoichiometric equation...

Explanation:

`CO(g) + 1/2O_2(g) rarr CO_2(g)`

And (ii) interrogate the molar quantities of each reagent...

`"Moles of carbon monoxide"-=(14.49*g)/(28.01*g*mol^-1)=0.0517*mol`

`"Moles of dioxygen"-=0.13*mol`

Clearly, dioxygen is in stoichiometric excess...and so we should get stoichiometric carbon dioxide...i.e. a molar quantity of `0.0517*mol` with respect to `CO_2`... a mass of ....

`0.0517*molxx44.01*g*mol^-1=??*g`...

What is the mass of dioxygen that remains unreacted?