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Chemistry (AQA)
Rate & Extent of Chemical Change
Measuring Rates of Reaction
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Subdecks (3)
(P)Precipitation & Colour Change
GCSE > Chemistry (AQA) > Rate & Extent of Chemical Change > Measuring Rates of Reaction
6 cards
(P) Change in Mass (Usually Gas Given Off)
GCSE > Chemistry (AQA) > Rate & Extent of Chemical Change > Measuring Rates of Reaction
5 cards
(P) The Volume of Gas Given off
GCSE > Chemistry (AQA) > Rate & Extent of Chemical Change > Measuring Rates of Reaction
4 cards
Cards (22)
The rate of a
reaction
can be observed either by how quickly the
reactants
are used up or how quickly the
products
are formed
Rate of reaction = amount of
energy
used up or amount of
product
formed /
time
This is the
mean rate
of reaction. To find the rate of a reaction at a particular time, you'll need to plot a
graph
and find the
gradient
at that time
When the product or reactant is a gas you usually measure the
amount in cm^3
If it's a solid, you use
grams
(g)
Time is often meaured in
seconds
(s)
The units for rate may be in
cm^3/s
, in
g/s
or
mol/s
You can also measure the amount of product or reactant in moles (
mol
)
See all 22 cards