Name: __________________________________ Date:__________________ Class period:_____
Objectives:
 Calculate the number of moles of a substance can be produced
from their coefficients in the balanced equation
 Review the basics of how to balance equations
Notes
U5 Stoichiometry with Moles NOTES
Stoichiometry: __________________________________________________________________
________________________________________________________________________________
Balanced chemical equations can be interpreted many ways…
N2(g)
+ 3 H2(g)

2 NH3(g)
Mole-Mole Calculations
The coefficients in the balanced equation represent the _______________________________
________________________________________________________________________________
Examples of mole ratios for the reaction:
N2(g) + 3 H2(g)  2 NH3(g)
Copyright © 2015 MsRazz ChemClass
Example: If 3.86 moles of potassium reacts completely with excess water, how many moles
of hydrogen would be produced?
Example: How many moles of aluminum will react with 0.512 moles of hydrogen chloride
(a.k.a. hydrochloric acid)?
Copyright © 2015 MsRazz ChemClass