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PowerPoint Handouts for Electrolytes and Non-electrolytes
What is Non-electrolytes?
Electrical Conductivity of Solutions
- a substance that does not form ions in solution. - Example:-
Table sugar (sucrose)
E lectrolytes and Non-E lectrolytesOne teaspoon of table salt
(NaCl)
How they differ?One teaspoon of table sugar (sucrose)
What is an electrolyte?-a substance whose aqueous solutions .
contain ions and hence conduct electricity.
One way, which might not be immediately obvious is in electrical
conductivity:The salt solution is a good conductor of electricity,
whereas the sugar solution is not.
-commonly exist as solutions of acids, bases or salts. eg. table
salt (NaCl)
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Ionic Compounds in Water
A non electrolytes solution does not contain ions, and the bulb
does not light.
Molecular Compounds in Water
An electrolyte solution contains ion that serve as charge
carriers, causing the bulb to light.
Glucose, a molecular compounds , dissolves without forming
ions.
Ionic Compounds in WaterDissociation of an ionic compound. When
an ionic compound dissolves in water, H2O molecules separate,
surround, and disperse the ions into the liquid
Categories of Electrolytes Strong electrolytes
Weak electrolytes
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Strong Electrolytes- a compound that when dissolved in water
will completely ionize or dissociate into ions. This solution
conducts electricity well.
Weak electrolytes
If the solution contains a small number of ions, the bulb will
be only dimly lit;
Strong electrolytes
Why do acids, bases and salts all conduct electricity? Strong
electrolytes conduct an electric current because the positive ions
can accept electrons, and the negative ions can donate electrons to
complete the circuit.
If the solution contains a large number of ions, the bulb will
be brightly lit;
Weak Electrolytes compound that when dissolved in water only
partially ionizes or dissociates into ions. That is, the compound
exists in water as a mixture of individual ions and intact
molecules. This solution conducts electricity weakly.
Some Examples of Solutions that conduct electricity
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Some Examples of Solutions that do not conduct
electricityAqueous hydrochloric acid lights the bulb brightly.
Hydrochloric acid is a strong electrolyte.
Distilled Water is a nonelectrolyte, the bulb does not
light.
Aqueous sodium hydroxide, a strong electrolyte, lights the bulb
brightly.
Distilled Water
Monosodium Glutamate Solution is a non-electrolyte, the bulb
does not light.MSG SOLUTION
Muriatic Acid is a strong electrolyte, lights the bulb
brightly.
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Sugar solution
When wires connected to a bulb and battery are placed into sugar
water, the bulb does not light. Sugar is a non electrolyte.
Electrolyte Balance in the Body-Electrolytes are minerals in
your body that have an electric charge. -They are in your blood,
urine and body fluids. -Maintaining the right balance of
electrolytes helps your body's blood chemistry, muscle action and
other processes.
It is important to keep a balance of electrolytes in your body,
because they affect the amount of water in your body, blood acidity
(pH), muscle action, and other important processes. You lose
electrolytes when you sweat, and you must replace them by drinking
fluids.
