The percent composition of nitrogen in ammonium nitrate is
To find the percent composition of a particular element in a compound, you first must find the molar mass of the compound you have. In this case the molar mass of ammonium nitrate is
You are looking for the percent composition of N. You have two moles of N in the compound, so you must multiply the molar mass of N by 2.
You then divide the mass of N by the mass of the molecule:
On a previous question with the same equation, you indicated that the amount of hematite
Determine the Molar Masses of
DETERMINE THE MASS OF
Determine the moles of
I am keeping some guard units to reduce rounding errors. I will round to three significant figures at the end.
Determine the moles
Determine the mass of
These steps can be combined into one step.