click once to begin jeopardy! chemistry final review chapters 6.1-6.4 and 6.7 juliann frenette
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JEOPARDY!
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Vocab. pH SolublityVapor
Pressure
Boiling and
FreezingMisc.
Strong electrolytes are ionic compounds that almost completely dissociate into ions
when dissolved in water. Weak electrolytes only partially
dissociate.
A solution is composed of the substance that is dissolved. The solute is what is
being dissolved. The solvent is the liquid in which the solute is dissolved.
%W/V= (mass solute/volume)(100)Molarity= moles of solute/L of
solutionMolality= moles of solute/kg of
solvent
Unsaturated solutions have room to hold more solute particles and saturated solutions are
holding all the solute particles it can. Supersaturated one are created by heating to increase the amount of solute in the solution then cooled down to a temp. that ordinarily wouln’t allow the solution to hold that much
solute
Strong electrolytes conduct electricity better than weak ones because there is a greater sea of
electrons when strong electrolytes are dissolved in
water
The pressure created by liquid molecules with enough energy
to break them free from the surface and become gas
molecules.
The boiling point is when the vapor pressure of the liquid
and the atmospheric pressure of he surroundings are equal.
It’s less than the original solvent because there are
fewer solvent molecules on the surface available for
evaporation.
When temp. increases, so does the average kinetic energy. When
the average increases, the # of molecules that have the min.
energy needed the break the imfs of the liquid and become vapor
also increases.
What are the equations to calculate boiling point and freezing point and what
do the variable stand for?
Boiling point: T=KB(M) where KB is the boiling point elevation
constant and M is molarity.Freezing point: T=KF(M) where
KF is the freezing point depression constant and M is
molarity.
At a lower temp., the solid molecules are leaving the
solid phase at a slower rate which can then be matched
by the liquid molecules joining the solid.
If 62.0 g of ZnCl2 is added to 0.100 L of water, what is the molarity of the solution (with correct significant digits)?
For a 0.262M solution of sucrose in water with a KB of .512
degrees Celsius/Mcalculate the boiling point of the
solution.
If the KB for water at sea level is .52 degrees Celsius/M, what is the molarity of it when the boiling
point is raised 100 degrees Kelvin?