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30 terms

AP Chem Unit 2 test

STUDY
PLAY
polar molecule
a molecule that has an uneven dispersion of charge
hydration
the interaction between the dissolving molecules and water molecules
solute
what is being dissolved
solvent
what it is being dissolved in
Arrhenius
conductivity comes from the presence of ions
strong electrolytes
-conducts electricity very efficiently
-all solute particles break apart into ions
-include soluble salts
weak electrolytes
conducts electricity only slightly
-a few solute particles create ions
non-electrolytes
does not conduct electricity
no solute particles create ions
includes soluble but nonionic compounds
strong acids
HCl, H2SO4, HBr, HNO, HI, HClO4
barometer
measures atmospheric pressure
manometer
measures pressure of gas in a container
1 atm=?
760 torr= 101,325 Pa= 101.325 kPa
V and T are ___ proportional. law?
directly, one goes up the other goes up.
Charles law
P and V are ___ proportional. Law?
inversely. boyles law
V and n are ___ proportional. Law?
directly. Avogadro's
P and T are ___ proportional. law?
directly. Gay-Lussac's
will the values be the same of two gases if they have the same volume and temp.- Kinetic energy
same because it depends on the temp
KE=(3/2)RT
will the values be the same of two gases if they have the same volume and temp- Particle velocity
same because it doesn't depend on mass and all the other conditions are the same
will the values be the same of two gases if they have the same volume and temp- density
different D=m/v. since the mass is different it wont be the same
will the values be the same of two gases if they have the same volume and temp-pressure
same because it depends on temp and volume which are the same
PV=nRT
ideal gas law
When gas is collected using water displacement, there is always a ____
mixture of gases
law of conservation of energy
energy can be converted but not created or destroyed
exothermic
energy is produced in reaction, flows out of system (-)
endothermic
energy is consumed by the reaction, flows into the system (+)
work
force acting over a distance
calorimeter
devise used to experimentally find the heat associated with a chemical reaction
heat capacity= ?
heat absorbed (J)/ increase in T (C or K)
ΔE=?
q+w= q-PΔT
ΔH=?
Sp x m x ΔT