Stoichiometry in Reactions: Balancing Equations and Real-World Applications
Reaction Stoichiometry Problems part 1
:
Class Practice Balancing Reactions
____Al + ___HCl __AlCl
3
+ ___H
2
___CH
4
+ ___O
2
__CO + __H
2
O
___CH
4
+ ___O
2
__CO
2
+ __H
2
O
__AgNO
3
+ ___Na
3
PO
4
__Ag
3
PO
4
+___NaNO
3
__C
8
H
18
+ __O
2
__CO
2
+ __ H
2
O
1
2
1
2
3
2
2
4
3
3
1
1
3
6
2
2
2
16
18
25
Gasoline combustion reaction
“
So…why give an excremental ejection
about stoichiometric coefficients and equation
balancing ???”
V-8 fuel injection module
Individual fuel injectors
Goes under
here*
Gas/O
2
ratio
and flow rate
to each fuel
injector
controlled by
engine block
microchip
Stoichiometric control in the real world
Microchip controlling
engine operation
1975 US Congressional
mandate for 23.5 mpg fleet
average enacted
8 bit PROM chips become
reasonably cheap
Variation of mpg and hp vs time for light-duty trucks
Stoichiometry is cooking:
Recipe for egg and cheese souffle
2
+
3
+
300 g/block
500 g/dozen
200 g/box
=1900 g/souffle
IN
OUT
Mass of 1 output souffle ?
1 *300 g
cheese
+
eggs
2* 500 g
condensed
milk
+
3*200
1
Cooking and stoichiometry
2
+
3
+
300 g/block
500 g/dozen
200 g/box
1
1900 g/souffle
How many….to make whole # of souffles ?
•
How many boxes of cream to make 4 souffles ?
•
600 grams cheese makes how many souffles ?
•
How many grams of eggs combine with 9 boxes
of cream ?
•
48 eggs combine with how many blocks of cheese ?
12
THE RECIPE
2
3000 g
2
Stoichiometry in reactions involves balancing equations, understanding coefficients, and controlling fuel injectors in the real world. This concept is crucial for chemistry, fuel combustion, and cooking, as shown through various examples and problems provided.
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Presentation Transcript
Reaction Stoichiometry Problems part 1: Class Practice Balancing Reactions 1 2 1 2 ___CH4 + ___O2 2 __CO2 + __H2O 2 3 4 ___CH4 + ___O2 __CO + __H2O 3 1 1 3 __AgNO3 + ___Na3PO4 __Ag3PO4 +___NaNO3 2 6 2 3 ____Al + ___HCl __AlCl3 + ___H2 Gasoline combustion reaction 2 25 16 18 __C8H18 + __O2 __CO2 + __ H2O
Sowhy give an excremental ejection about stoichiometric coefficients and equation balancing ???
Individual fuel injectors Stoichiometric control in the real world Gas/O2 ratio and flow rate to each fuel injector controlled by engine block microchip Microchip controlling engine operation V-8 fuel injection module Goes under here*
Variation of mpg and hp vs time for light-duty trucks 1975 US Congressional mandate for 23.5 mpg fleet average enacted 8 bit PROM chips become reasonably cheap
Stoichiometry is cooking:Recipe for egg and cheese souffle IN 1 + 2 + 3 200 g/box OUT 300 g/block 500 g/dozen Mass of 1 output souffle ? + 1 *300 g cheese 2* 500 g +3*200 eggs condensed milk =1900 g/souffle
Cooking and stoichiometry THE RECIPE 3 1 + 2 + 300 g/block How many .to make whole # of souffles ? How many boxes of cream to make 4 souffles ? 500 g/dozen 200 g/box 1900 g/souffle 12 2 600 grams cheese makes how many souffles ? How many grams of eggs combine with 9 boxes of cream ? 3000 g 2 48 eggs combine with how many blocks of cheese ?
