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Ap Chem > Ch 789 > Flashcards

Ch 789 Flashcards

1
Q

Matter can absorb/ emit any quality of energy

A

Quanta

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2
Q

Matter absorbed/emitted in discrete units

A

Plank

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3
Q

Light strikes metal, electrons emitted

A

Photoelectric effect

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4
Q

Delta E= when photon absorbed or emitted by molecule energy of molecule is increased/ decrease by any equal to energy of photon

A

h(6.63e^-34) c(3e8)/¥

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5
Q

Light at specific ¥ can be used to determine concentration

A

Beers law

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6
Q

Electrons in atoms move around molecules in certain circular orbits

A

Bohr model

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7
Q

Lowest energy state

A

Ground state

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8
Q

Any state higher

A

Excited state

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9
Q

Relationship btn energy absorbed/ released by atoms

A

En=-RH(2.1e-18)(1/n^2)

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10
Q

Change in energy absorbed/ released by atoms

A

Delta = RH(2.1e-18)(1/nf^2-1/ni^2)

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11
Q

Electron configuration exceptions

A

Cu, Cr, Ag, Au Mo

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12
Q

Opposite spin

A

Pauli exclusion

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13
Q

Lowest levels available

A

Aufbau

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14
Q

Fill 1 before 2

A

Hunds

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15
Q

Unpaired magnetic

A

Paramagnetic

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16
Q

Paired not magnetic

A

Diamagnetic

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17
Q

Electron added, energy goes from higher state to lower state

A

Electron affinity

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18
Q

Negative electron affinity

A

Energy released

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19
Q

Positive electron affinity

A

Energy required

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20
Q

Non polar covalent

A

Exist between two nonmetals close to each other or the same

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21
Q

Polar covalent

A

Between to nonmetals with difference in electronegativity

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22
Q

Ability of an atom to attract shared electrons to itself

A

Electronegativity

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23
Q

Determined strength of bond

A

Difference in electronegativity

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24
Q

Energy required to break bond

A

Bond energy

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25
Q

Center with positive and negative charge, goes to more electronegative side

A

Dipole moment

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26
Q

Coulomb’s law energy of interaction between ION pairs

A

E=2.32e-19(Q1Q2/r)

27
Q

Force is proportional to charge

A

Larger charge, stronger interaction, smaller ions= stronger interactions

28
Q

Atoms with same electrons decrease with increasing atomic number

A

Isoelectronic

29
Q

EPA 2

A

Linear

30
Q

EPA 3

A

Trig plan

31
Q

EPA 4

A

Tetrahedral

32
Q

EPA 5

A

Trig bipy

33
Q

EPA 6

A

Octahedral

34
Q

MG 2,0

A

Linear

35
Q

MG 2,3

A

Linear

36
Q

MG 3,0

A

Trig plan

37
Q

MG 2,1

A

Bent

38
Q

Mg 2,2

A

Bent

39
Q

Mg 4,0

A

Tetra

40
Q

Mg 3,1

A

Trig pyramidal

41
Q

Mg 5,0

A

Trig bipyramidal

42
Q

Mg 4,1

A

Seesaw

43
Q

Mg 3,2

A

T-shaped

44
Q

Mg 6,0

A

Octahedral

45
Q

Mg 5,1

A

Square pyramidal

46
Q

Mg 4,2

A

Square planar

47
Q

Mixing orbitals to form special ones for bonding

Want to be at lowest energy level possible

A

Hybridization

48
Q

Linear hybrid

A

Sp 2 180*

49
Q

Trig plan hybrid

A

Sp2 3 120*

50
Q

Tetra hybrid

A

Sp3 4 109*

51
Q

Trig bipy hybrid

A

Sp3d

52
Q

Center along inter nuclear axis

A

Sigma

53
Q

Occupied above and below inter nuclear axis

A

Pi

54
Q

Single bond has

A

1 sigma

55
Q

Double bond has

A

1 Pi 1 sigma

56
Q

Triple bond has

A

1 sigma 2 Pi

57
Q

Sigma stronger than

A

Pi

58
Q

Bo=

A

(#bonding e-#antibonding e)/2

59
Q

Lower energy than single molecule

A

Bonding

60
Q

Higher energy than single molecule

A

Antibonding

61
Q

Higher order =

A

Stronger bond

62
Q

Building tower count valence electrons and fill bottom to top

A

2s then 2p
2s sigma then sigma*
2p Pi and sigma then pi* sigma*

63
Q

Full order

A 
2s sigma
2s sigma*
2p pi
2p sigma
2p pi*
2p sigma*
64
Q

To find wavelength and frequency with speed of light

A

C(3e8)=¥v

Ap Chem (2 decks)

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