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Sophomore- Spring 2024- Mac > Test 1- Chem 112- St. Thomas- Summer > Flashcards

Test 1- Chem 112- St. Thomas- Summer Flashcards

1
Q

which are bonding forces?

A

intERmolecular

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2
Q

when are london forces stronger?

A

larger molar mass,

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3
Q

more imfs mean…

A

lower temp and closer to solid

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4
Q

when does vapor pressure go up?

A

when temp goes up

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5
Q

higher altitude means what for vapor pressure?

A

lower, so there is a lower boilng point

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6
Q

pressure cooker

A

increased pressure, so increades temp, so food is cooking at higher temp

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7
Q

vaporization, endo or exo

A

exo

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8
Q

condensation, endo or exo

A

endo

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9
Q

ion dipole

A

intER, high water soluability

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10
Q

electrostatic force

A

inrRA, undissolvable

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11
Q

more london forces means

A

more solubility

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12
Q

gases: higher temp

A

decreased solubility

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13
Q

colligative properties

A

depend on concentration, not chemical identity. vapor pressure, boiling point, freezing point, osmotic pressure

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14
Q

molality

A

moles solute/kg solvent

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15
Q

mole fraction

A

moles A/ total moles

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16
Q

boiling

A

boiling when vapor pressure = atmospheric pressure

17
Q

osmotic pressure

A

faster solute to solvent

18
Q

what affects rate

A

chemical properties
physical state of reactants
temp
concentration of reactants
presence of catalyst

19
Q

graph: zero

A

decreasing left to right, slope = -k

20
Q

graph: first

A

decreasing left to right, slope = -k

21
Q

graph, second

A

increasing left to right, slope = k

22
Q

reaction intermediates

A

formed and used up during overall reaction

23
Q

elementry reactions

A

individual steps of reaction

24
Q

one molecule step

A

unimolecular

25
Q

two molecule step

A

bimolecular

26
Q

3 molecule step

A

termolecular

27
Q

rate determining step

A

slowest step

28
Q

catalyst

A

speed reactiion by decreasing activation energy

29
Q

less IMFs mean

A

higher temp and closer to gas

30
Q

conversions

A

1atm=760torr=760hgmm=14.7psi=101325pa=1.01325bar

31
Q

voltility

A

how well something turns into a vapor

32
Q

Less london dispersion force=

A

lower boiling point

33
Q

in phase transitions, does temp change?

A

NO

34
Q

water freezing point

A

0C

35
Q

strongest IMF between solvent and solute

A

ion-dipole

Sophomore- Spring 2024- Mac (11 decks)

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