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MCAT chemistry
N/A
32
Chemistry
Not Applicable
02/14/2009

Additional Chemistry Flashcards

 


 

Cards

Term
Heat of Transition
Definition
The amount of energy required to complete a transition. ∆H
Term
Heat of Fusion
Definition
Amount of heat that must be absorbed to change a solid into liquid
Term
Heat of vaporization
Definition
energy released when a liquid changes to gas
Term
How to find the amount of heat q?
Definition
q= n x ∆H
Term
calorimetry
Definition
q= mc∆T
Term
Kinetic Molecular Theory(Ideal gas)
Definition
1. no volume
2. No intermolecular forces
3. KE is proportional to T
Term
Relationship between C and K
Definition
K = C + 275.15
Term
Units for Pressure
Definition
1atm = 760 torr = 760 mm Hg
Term
gaseous solute + liquid solvent -> liquid solution. Is this possible?
Definition
yes
Term
solid solute + solid solvent -> solid solution. Is this possible?
Definition
yes
Term
gaseous solute+ gaseous solvent --> gaseous solution
Definition
Is this possible?
Term
Is alloy a solution
Definition
yes
Term
in ideally dilute solution, do solute molecules interact with each other?
Definition
no
Term
In ideally dilute solution, do solvents molecule interact each other?
Definition
yes
Term
in ideally dilute solution, the mole fraction of the solvent approaches 1?
Definition
yes
Term
how to calculate of mole fraction of the solvent?
Definition
X= moles of solvent/ total numbers of mole
Term
Is Co2 nonpolar or polar
Definition
nonpolar
Term
Is SO2 nonpolar or polar
Definition
polar
Term
why is octane more soluble in benzene than in water?
Definition
because the bonds between octane and water are much weaker than the bonds between water molecules
Term
what is colloid?
Definition
a type of chemical mixture where one substance is dispersed evenly throughout another
Term
can you extract colloidal particles with simple filtration?
Definition
no
Term
can you extract colloidal particles by adding electrolytes?
Definition
yes
Term
Is path of the beam visible in the colloid?
Definition
yes
Term
is path of the beam visible in the solution?
Definition
no
Term
Name the following: ClO-, ClO2-, ClO3-, ClO4-
Definition
hypochlorite, chlorite, Chlorate, perchlorate
Term
the hydration number of an ion is ...
Definition
the number of water molecules that bond to an ion in an aqueous solution
Term
what is electrolyte
Definition
substance that conducts electricity in aqueous solution. needs battery
Term
If the molecule has fewer H+, is it conjugate base or conjugate acid?
Definition
conjugate base
Term
what is the relationship between solubility of gas in the liquid and the temperature?
Definition
higher the temperature, lower the solubility.
Term
If the E is positive, is it spontaneous?
Definition
yes
Term
which physical properties determine the melting point?
Definition
size of the atom
Term
power and resisitivity
Definition
P=I2/R
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