MAGNESIUM OXIDE STOICHIOMETRY LABM NAME____________
PURPOSE: Burn magnesium, calculate moles
PROCEDURE: magnesium is placed in a crucible, and heated, as before
DATA:
Crucible mass ___________
Mg and crucible mass _______
MgO and crucible mass __________
CALCULATIONS AND CONCLUSIONS:
Mass of Mg used: ________
Mass of MgO produced _________
Balanced chemical equation with states _______________________________________
What were the reactants?______________________ what was the product?___________
Ways to improve the experiment: ___________________________________________________
_______________________________________________________________________
______________________________________________________________________
The limiting reactant is ___________ and the excess reactant is ______________, and the evidence is ___________________________________________________________
________________________________________________________________________
________________________________________________________________________
one mole of magnesium weighs ________g
The molar mass of Magnesium oxide is __________________g
In this reaction, does the material in the crucible gain or lose mass? _________ Why?
__________________________________________________________________
__________________________________________________________________
Is the law of conservation of mass violated? _______ Explain ________________
__________________________________________________________________
When wood burns does it appear to gain or lose mass? _____ Why?_________
__________________________________________________________
What is the white smoke?_________________________________
What are the reactants and products when methane, CH4 , is burned?
Chemical equation_____________________________________________________