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Chemistry Graphs: Reaction Rates
Use the given
graph
to answer the following questions.
General Questions
If the general
equation
for a reaction is written as
, then the
rate
of the reaction can be expressed as
.
The
rate
expression
is negative. Explain how this is reflected on the graph.
1.
According to the graph, are the reactants disappearing at a constant rate?
2.
According to collision theory, molecules must collide in order to react. Where on the
graph
is the
rate of reaction
is greatest? Where is it slowest?
3.
The plot of the
concentration
of the products versus time is a mirror
image
of the
reactant
plot. What does this imply about the stoichiometry of the reaction?
4.
The
graph
shows that the
concentration
of
reactant
decreases by half in 50 seconds. What is the
concentration
of
reactant
after 50 seconds? If the
concentration
of the
reactant
again decreases by half, what is the
concentration
after 100 seconds? After 150 seconds?
5.
What is the sum of the
concentration
of
reactant
and
product
at any given time?
6.
E Saylor
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