ACS Chem

Question 1

increased vapor pressure….

Answer 1

decreased surface tension

Question 2

decreased vapor pressure….

Answer 2

increased surface tension

Question 3

Graham’s Law of Effusion

Answer 3

lightest weight effuses the fastest

Question 4

melting point =

Answer 4

freezing point

Question 5

cubic solid and poor electric conductor in solid state

Answer 5

crystaline solid like sodium chloride

Question 6

melting point decreases… this is attributed to ???

Answer 6

freezing point depression

Question 7

Ideal gases break from conditions at what conditions?

Answer 7

low temp - IMF significant;

high pressure - gas does not become compressible

Question 8

solutions

Answer 8

homogeneous mixtures

Question 9

Cooling curve and a long horizontal line…. depends on

Answer 9

the heat of melting of a pure substance

Question 10

soft, poor conductor of heat and electricity

Answer 10

network covalent

Question 11

CO2 as dry ice is what kind of solid?

Answer 11

molecular solid

Question 12

Vapor Pressure and Raoult’s Law

Answer 12

XaPA + XbPB

Question 13

VAPOR PRESSURE depends on

Answer 13

temperature

Question 14

boiling point occurs when

Answer 14

temperature and pressure at equilibrium

Question 15

PV=nrt; but what about finidng molar mass

Answer 15

PV = nRT
n= Mass/ MM

Question 16

solubility decreases as you go in what direction of the periodic table

Answer 16

decreases as you go down the periodic table

Question 17

pure substances

Answer 17

the substances that have the same of the same……. they could be grouped together and seen throughout