Reaction Stoichiometry Mole to Mole Conversions

“A balanced equation is just like a recipe!” Today’s Phenomenon: “A balanced equation is just like a recipe!”

Just like a recipe tells us how much of each ingredient we need, a balanced equation tells us the number of moles of a element or compound that are produced or required. 2 Na + Cl2 → 2 NaCl

2 Al + 3 SnO  3 Sn + Al2O3 How many moles of Al are required to produce 1 mole of Aluminum oxide? How many moles of Tin (II) oxide are needed to produce 1 mole of Aluminum oxide? What is the mole ratio of Aluminum to tin (II) oxide?

N2 + 3H2  2NH3 How many moles of Nitrogen gas are needed to create 7.0 moles of Nitrogen trihydride? But sometimes we are given a number that is not the exact one from the equation. So what do we do? Mol A → Mol B

N2 + 3H2  2NH3 How many moles of Nitrogen gas are needed to create 7.0 moles of Nitrogen trihydride?

N2 + 3H2  2NH3 How many moles of Nitrogen trihydride will be produced from 6.0 moles of Hydrogen gas?

C₃H₈ + 5O₂  3CO₂ + 4H₂O How many moles of oxygen are necessary to react with 4.0 moles of propane (C3H8)?

Bromine gas plus Potassium iodide Write the equation by predicting the products. Then, balance the reaction. How many moles of bromine are required to create 5.0 moles of potassium bromide?