Stoichiometry flow chart

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Stoichiometry flow chart:
In all cases, be sure to have a balanced equation!
1. Problems with
one quantity
2. Problems with
two quantities
One reactant
and one
product
A.
This is a regular
stoichiometry
problem with one
calculated quantity
(x)
3. Problems with
three quantities
Both are
reactants
B.
This is a
percent yield
problem; select
the noted
product for (x);
(x) is now called
the theoretical
yield.
C.
This is a
limiting
reagent
problem; select
a product for
comparison (x)
and set up two
equations.
Divide product
value given in
problem, now
called the
experimental
yield by
calculated (x)
Smaller value
for (x) was
created by
limiter
D.
This is a
combination
problem;
determine limiter,
then use value for
(x) to calculate
percent yield
Measuring Chemical Quantities Checklist
Skill Sets to Master
 Counting Atoms in Molecules and Formula Units
 Write Chemical Formulas
 Determining Molar Mass
 Determining Molar Volume of gases @ STP
 Mole Conversions on the Mole Road
 Determining Percent Composition
 Balancing Chemical Equations
 Identifying Chemical Reaction Types
 Identify LIMITING Reactant and EXCESS Reactant
 Observe MOLE RATIOS using a balanced Chem Eqn
 Determine Theoretical Yield
 Calculate Percent Yield
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