Convert 8.05 moles of magnesium carbonate to formula units.

Does anyone know a lot about how to: - calculate mass of magnesium metal - calculate the actual yield of magnesium oxide - calculate the theoretical yield of mgo - calculate the percent yield of mgo - determine the percent yield of mgo - determine the average percent yield of mgo i had to do an online lab and its asking these questions but i have no idea where to start or how to be able to find these things. i can post the chart of the data from the lab or if you can tell me exactly how i can find each.

Hey guys so i need to know what is _nh3+> nh4oh ~chemistry~

The atomic number, or number, is the described as the number of in the nucleus of an chemical element.