To determine the empirical formula of magnesium oxide. Mass of crucible and lid (step 1) 50.00 Mass of crucible, lid and magnesium (step 3) 50.24 Mass of crucible, lid and magnesium oxide (step 7 ...

to produce magnesium oxide If a gas escapes, the total mass will look as if it has decreased. If a gas is gained, the total mass will look as if it has increased. However, the total mass stays the ...