6543445
Description
Mind Map by Matthew White, updated more than 1 year ago
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Created by Matthew White
about 8 years ago
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Moles and
Solutions
- Concentration
- In a solution, the
solute is what
dissolves in the
solvent, which
could be salt in
water.
- Concentrations
are measured in
moles per cubic
decimetre
- The concentration
of a solution tells
you how much
solute is dissolved
in a given amount
of solvent.
- If you know the concentration in mol
dm-3, you can find the amount, in
mol, in any volume of a solution. If
the volume of the solution is
measured in dm-3 then: N = C x V
- N - amount of substance
(mol) C - concentration of
solute (mol dm-3) V -
volume of solution (dm-3)
- N - amount of substance
(mol) C - concentration of
solute (mol dm-3) V -
volume of solution (dm-3)
- In a solution, the
solute is what
dissolves in the
solvent, which
could be salt in
water.
- Solutions
- Moles = Concentration x Volume
- Solvent - Salt
- Solute - Water
- Made up of two or
more substances.
Homogeneous
mixture.
- Has a uniform
composition meaning
that the substances
cannot be distinguihsed
- Moles = Concentration x Volume
- Moles
- A mole in chemistry is simply
and unit of measurement.
Chemical reactions sometimes
produce results which would not
make sense in grams or absolute
numbers. We don't want to be
working with 50 digit numbers!
- A mole is the quantity
of anything that has
the same number of
particles found in
12.000 grams of
carbon-12
- Avogadro's number:
6.02x10^23
- Moles are used because
they are consistent it
relates to a constant
comparison. This means
that we can convert easily
to atoms/molecules and
grams
- Mass = Moles x
Relative Formula
Mass
- A mole in chemistry is simply
and unit of measurement.
Chemical reactions sometimes
produce results which would not
make sense in grams or absolute
numbers. We don't want to be
working with 50 digit numbers!
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