. Use the molar masses of the elements in the product to calculate the number of moles of eachelement that reacted to form the compound  2. Calculate the ratio between the number of moles of each element in the product you made. Whatis the empirical formula of your compound? Remember to round up your empirical formula to thenearest whole number ratio.   Mass of crucible &  lid (g) Mass of crucible, lid & Mg ribbon (g) before heating  Mass of crucible, lid, & product after 1st heating (g) Mass after 2nd heating required (g)  Mass after 3rd heating required (g)  Mass after additional heating (s), if needed (g) 34.30 g  34.47 g  34.57 g  34.58 g  N/A  N/A

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Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".