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Worksheetscalculation concentration
Total questions: 79
Worksheet time: 1hrs 8mins
molarity equation
(a)
molarity
(a)
making a molar solutions step one
A weighed amount of a substance (the solute) is put into the volumetric flask, and a small quantity of water is added.
the solid is dissolved in the water by gently swirling the flask (with a stopper in place).
more water is added, until the level of the solution just reaches the mark etched in the neck of the flask.
making a solution common mistake
(a)
making dilutions using molarity equation
(a)
making dilute solutions-
you can only
(a)
mass percent
(a)
mass percent equation
(a)
volume percent
(a)
volume percent equation
(a)
a solution
(a)
solvent
(a)
solute
(a)
Coca cola-
carbon dioxide gas
solute
solvent
Coca cola-
water
solute
solvent
Coca cola-
sugar
solute
solvent
Coca cola-
caffeine
solute
solvent
Air-
carbon dioxide
solute
solvent
Air-
oxygen
solute
solvent
Air-
nitrogen
solute
solvent
Air-
water
solute
solvent
Nature of the structure- some compounds are more soluble than others based on their (a)
If in ionic compounds the attraction for the ions is greater than that of the water, then the substance (a) dissolve well in water
in general, (a) temperatures dissolve substances better
agitation- the more a solution is stirred, mixed, etc. , the (a) the substance dissolves
particle size-
the smaller a particle, the (a) the substance dissolves
does the nature of the solution affect the amount of solid that will dissolve
yes
no
does the temperature affect the amount of solid that will dissolve
yes
no
does the agitation affect the amount of solid that will dissolve
yes
no
does the particle size affect the amount of solid that will dissolve
yes
no
the nature of a solute- some gases dissolve better in liquids than others based on their molecular
(a)
in general, (a) temperatures dissolve gases better
agitation- the more a solution is stirred, mixed, etc. , the (a) a gas dissolves
pressure- the higher the pressure, the (a) a gas dissolves
unsaturated solution
(a)
saturated solution
(a)
supersaturated solution
(a)
you have a container of 100 ml water that can hold 30 grams of salt while actually having 40 grams.
saturated
supersaturated
unsaturated
you have a container of 100 ml water that can hold 30 grams of salt while actually having 25 grams.
saturated
supersaturated
unsaturated
if the salt (a) crystallize out then the solution is supersaturated because it contains more than the maximum at the new cooler temperature.
a supersaturated solution can be made to crystallize by adding a (a) crystal
what is a seed crystal
(a)
dilute solution
(a)
concentration solution
(a)
a (a) solution is concentrated
an (a) saturated solution an be concentrated or dilute
miscible
(a)
immiscible
(a)
alcohol in water
miscible
immiscible
oil in water
miscible
immiscible
making a molar solutions step two
A weighed amount of a substance (the solute) is put into the volumetric flask, and a small quantity of water is added.
the solid is dissolved in the water by gently swirling the flask (with a stopper in place).
more water is added, until the level of the solution just reaches the mark etched in the neck of the flask.
making a molar solutions step three
A weighed amount of a substance (the solute) is put into the volumetric flask, and a small quantity of water is added.
the solid is dissolved in the water by gently swirling the flask (with a stopper in place).
more water is added, until the level of the solution just reaches the mark etched in the neck of the flask.
Colligative properties
(a)
Colligative Properties-
example-
Vapor Pressure (a)
Colligative Properties-
example-
Boiling Point (a)
Colligative Properties-
example-
Freezing Point (a)
The phenomenon that the boiling point of a liquid will be higher when another compound is added, meaning that a solution has a higher boiling point than a pure solvent.
(a)
The number of solvent molecules escaping into vapour phase gets reduced and as a result the pressure exerted by the vapour phase is also reduced.
(a)
The decrease of the freezing point of a solvent due to the addition of a solute into the solvent.
(a)
Vapor Pressure
(a)
a state in which opposing forces or influences are balanced.
(a)
Pressure is the number of (a) that are above (in gaseous state) a solution
as the number of solute particles increase, the vapor pressure (a)
as the number of solute particles increase, the vapor pressure decreases. This is due to the water particles surrounding the solute and thus are less likely to gain enough (a) to escape the surface
Which one reduces the vapor pressure the greatest
1 mole of Sucrose
1 mole of NaCl
1 mole of CaCL2
the adding of a solute to a pure solvent (a) the boiling point of the solvent
which would increase the boiling point of water the most
2 mole NaCl
1 mole CaCl2
3 mole of glucose
the adding of a solute to a pure solvent (a) the freezing point of the solvent
particles in a pure solvent (a) the formation of a freezing pattern
which salt is better for de-icing roads
40 g of NaCl
40 g of CaCl2
electrolyte
(a)
non electrolyte
(a)
conductivity is (a) a colligative property
conductivity is based on the number of (a) in solution, not just the number of dissolved particles
a substance that dissolves and does not produce ions will (a) conduct electricity
which solution conducts the best
1 mole of NaCl
1 mole of CaCl2
4 mole of glucose
Beers law
(a)
Chromatography
(a)
Titration
(a)
