A #3.0*g# mass of magnesium metal is combusted in a #2.0*g# mass of oxygen gas. What mass of magnesium oxide results?
1 Answer
Jan 21, 2018
Approx.
Explanation:
We must look at the stoichiometric equivalence, for which we need a stoichiometric equation...
And we interrogate the molar quantities of each reagent in the first scenario...
There is thus stoichiometric dioxygen gas in this instance....and we get
For the second scenario.....
Here dioxygen is in stoichiometric excess....we still get out