mixtures & solutions ppt
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Mixtures and SolutionsMixtures and SolutionsCan You See The Phases?
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A mixture is made of 2 or more types of atoms that are NOT chemically combined together.
Mixtures can take many forms:
2+ Solids 2+ Gases
What Is A Mixture?What Is A Mixture?
2+ Liquids
ANY combination of solids, liquids & gases
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Mixtures of SolidsMixtures of Solids
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Mixtures of LiquidsMixtures of Liquids
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Mixtures of GasesMixtures of Gases
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Types Of MixturesTypes Of Mixtures
There are 2 major types of mixtures:
Heterogeneous Homogeneous
You can see the different parts
(phases) of the mixture easily
Means “different” Means “the same”
You cannot see the different parts
(phases) of the mixture
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Heterogeneous MixturesHeterogeneous Mixtures
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Homogeneous MixturesHomogeneous Mixtures
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Which Kind of Mixture?Which Kind of Mixture?
Classify each type of mixture as:
Heterogeneous Homogeneous
Heterogeneous HeterogeneousHomogeneous
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A solution is a special type of mixture.
SolutionsSolutions
A solution is a homogeneous mixturethat combines a solute and a solvent.
A solution involves one substance dissolving in
another substance, which is usually a liquid.
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A solution is a special type of mixture.
SolutionsSolutions
A solution is a homogeneous mixturethat combines a solute and a solvent.
The solid part that gets dissolved.
e.g. salt, sugar
The liquid part that does the dissolving.
e.g. water
Solute Solvent
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A solution is a special type of mixture.
SolutionsSolutions
A solution is a homogeneous mixturethat combines a solute and a solvent.
The solid part that gets dissolved.
e.g. salt, sugar
The liquid part that does the dissolving.
e.g. water
Solute Solvent
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How To Make A SolutionHow To Make A Solution
Solute Solvent Solution+ =
Salt Water Salt Solution
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We can measure how easily a solute will dissolve in a certain solvent.
SolubilitySolubility
This measurement is called solubility.
The solute dissolves quickly & easily
e.g. salt in water
The solute does not dissolve easily
e.g. sand in water
HIGH Solubility LOW Solubility
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We can add a LITTLE or a LOT of solute!
Dilute vs. ConcentratedDilute vs. Concentrated
For example, putting spoonfuls of sugar into a cup of tea…
A solution with only a small amountof solute is called a dilute solution.
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We can add a LITTLE or a LOT of solute!
Dilute vs. ConcentratedDilute vs. Concentrated
For example, putting spoonfuls of sugar into a cup of tea…
A solution with a large amount of
solute is called concentrated.
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Eventually, a solvent can’t hold anymore!
Saturated SolutionsSaturated Solutions
A saturated solution CANNOT hold any more solute at a certain temperature.
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But, by heating a solvent up, we can make it hold even more solute than normal.
A super-saturated solution contains more solute than it can normally dissolve.
Keep Going!Keep Going!
Heat It!
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Any Questions?Any Questions?