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Tests and Questions > Chem, Ochem, and Physics > Flashcards

Chem, Ochem, and Physics Flashcards

1
Q

Does charge of a molecule change energy (kinetic or potential) in a uniform electric field?

A

No but it could change direction of motion

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2
Q

When comparing energy levels on a rxn coordinate diagram when do you use exergonic/endergonic and when do you use exothermic/endothermic?

A

Exergonic/endergonic is comparing PE or KE which the other is enthalpy.

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3
Q

First order rxn graph

A

Y axis: ln(compound)
X axis: time
Slope: k(compound)

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4
Q

Relationship between boiling point and vapor pressure

A

Inverse- higher bp=lower vapor pressure and vice versa

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5
Q

Paramagnetic

A

Molecules that show induced magnetic field in the same direction as the applied field and it’s caused by unpaired electrons

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6
Q

Diamagnetic

A

Molecules that show an induced magnetic field in the opposite direction as the applied field

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7
Q

Saponification

A

Is the base catalyzed hydrolysis of triglycerides and is followed up with an acid work up step to put hydrogens back on carboxyl groups of FA

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8
Q

Lead acid batteries have what kind of energy density and what is energy density

A

They have a low energy density and energy density is also known as the energy to weight ratio

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9
Q

Conservative forces

A

Do not result in the loss of energy

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10
Q

Non-conservative forces

A

Result in force is leading to the dissipation of energy

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11
Q

Intensity

A

I=P/A

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12
Q

Michaelis-Menten Equation

A

Vo=Vmax[S]/(Km+[S])

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13
Q

Which sugars will compete for hexokinase binding site

A

Epimers of Glucose or monomers of similar structure

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14
Q

Premolten Globule state

A

Is a protein beginning to fold, and is more folded/ordered than an unfolded protein but less ordered than the molten globule state

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15
Q

As area decreases how does that affect velocity and Pressure of a fluid such as blood traveling in the arteries?

A

Velocity will inc will a dec in cross sectional area (A1v1=A2v2) and Pressure will subsequently dec with an increase is velocity

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16
Q

Downfield

A

Refers to proton NMR spectroscopy in the type of hydrogen that is closest to you an electron withdrawing group therefore it will be further down on the plot than hydrogens that are not close to ab electron withdrawing group

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17
Q

Chromatic aberration

A

Is a dispersed affect in which a lens fails to focus all of the light at a common convergence point

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18
Q

What accounts for the separation of different wavelengths of light that pass through a prism?

A

Dispersion- results in the separation of different wavelengths

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19
Q

Total Internal Reflection

A

For this to happen light must be traveling from a medium with a high index of refraction to an area with a low index of refraction

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20
Q

TIR equations

A

Sin(crictical angle)=n2/n1

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21
Q

Vitamin E

A

Refers to a set of closely related lipid soluble compounds that function as antioxidants

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22
Q

Vitamin B one

A

Thiamine Is a coenzyme in the metabolic process involving amino acids and carbohydrates and is water soluble

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23
Q

Vitamin K

A

Refers to a group of closely related molecules that contribute to blood coagulation and clotting and lipid soluble

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24
Q

Vitamin D

A

Lipids are you and is involved in calcium metabolism

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25
Q

Azimuthal quantum number

A

(l) Determines its orbital angular momentum and describe the shape of the orbital

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26
Q

Principal quantum number

A

“N” Measures the potential energy of the electron and the approximate radio size of the electron cloud

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27
Q

Magnetic Quantum number

A

(ml) Describes the spatial orientation of the orbital in question with in its sub shell

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28
Q

Spin quantum number

A

(ms) Describe the spin orientation of the election which relates to its angular momentum the two possible spin orientations are -1/2 and +1/2

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29
Q

What characterizes total internal reflection

A

This occurs when light is reflected in a medium that has a higher and then it’s surroundings and the angle of incidence is greater than or equal to the critical angle

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30
Q

Total specific rotation equation

A

(Specific rotation R)(% R) + (specific rotation S) (1-%R or %S)

S and R specific rotations should have opposite signs

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31
Q

Ka=

A

[H+][A-]/[HA]

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32
Q

Ozonolysis

A

Is the cleavage of an alkene or alkyne with ozone that results in multiple double bond to oxygen bonds (carbonyl)

33
Q

Elastic work equation

A

W=Fx/2 or Ksx^2/2

34
Q

Beta decay

A

Is the decay in with a beta particle a.k.a. electron a positron is omitted from a heavy atom nucleus

35
Q

Alpha decay

A

An alpha particle is emitted from a heavy atom nuclei

36
Q

Fundamental frequency of a fixed string equation

A

f=v/2L

37
Q

Fatty acid digestion

A

Dietary fats are broken down into monoacylglycerol and fatty acid by pancreatic lipase. These lipid-soluble molecules can freely diffuse into intestinal cells and contribute to the formation of micelles which then moved into lacteals that eventually end up in circulation

38
Q

Multipotent Stem Cells

A

Give rise to one of several cell types within the same category

39
Q

Vf^2=

A

Vo^2+2ad

40
Q

Rate of effusion equations

A

Rate2/rate1 and rates depend on Vrms

41
Q

Vrms=

A

(3RT/M)^1/2

42
Q

Ribonuclease

A

Cleaves RNA

43
Q

What thpe of bonding will occure in this molecule Mo(CO)6

A

d^2 sp^3 When the orbital is present it will always be filled first because it contains a lower principal quantum number then and SP orbital

44
Q

2^n rule

A

Possible stereoisomers, remember to subtract 2 meso ones if applicable

45
Q

Diverging (concave) lens focal length

A

Negative

46
Q

Converging (convex)lens focal length

A

Postive

47
Q

Magnification =

A

I/o

48
Q

Frequency

A

1/period (time it takes for 1 full oscillation)

49
Q

Harmonics (closed + open pipe) wavelength=

A

4L/n

50
Q

Double open pipe and double closed wavelength=

A

2L/n

51
Q

Pitch

A

Is analogous to frequency

52
Q

Loudness

A

Is analogous to amplitude

53
Q

1dB=

A

10 x log (I/Io)

54
Q

Intensity units

A

Watts/m^2

55
Q

Power and and image distance relationship

A

Inverse.

Higher power means that image distance will be smaller and vice versa

56
Q

What changes between velocity wavelength and frequency when moving into different media

A

Wavelength and velocity may change but frequency will not do to the conservation of energy law

57
Q

Catalytic efficacy

A

Vmax or kcat /[E] or Km

58
Q

How can you mimic phosphorylated amino acids?

A

By using carboxylic acid derived AA’s they contain a negative charge when deprotonated just like phosphate groups

59
Q

How are ATP phosphates labeled

A

Alpha, beta, gamma

60
Q

Venturi effect

A

Air enters the mask because the static pressure of the air is larger than the static pressure of the oxygen in Flo

61
Q

Gibbs free energy and Keq

A

When Keq is greater than 1 then G is neg

Keq less than 1 then G is pos

62
Q

Coordinate covalent bond

A

The Lewis acid base interaction between a metal carry-on and an electron pair donor

63
Q 
Which of the following has the smallest 2nd ionization energy
Na
C
O
Ca
A

Ca bc it takes removal of 2 electrons to reach a full octet and it does it in its second ionization so its more favorable

64
Q

Henderson hasselbach

A

pH=pKa+log([base]/[acid])

65
Q

How to find how many tikes stronger a dB difference is

A

10^(dB diff/10)

66
Q

Diverging lens video

A

Always produce virtual upright enlarged images

67
Q

PE for electrice friekd equations

A

Kq1q2/r or qV

68
Q

Specific activity

A

Represents a measure of solution purity

69
Q

Catalytic efficacy=

A

Kcat/Km

70
Q

Law of mass action

A

Is the equilibrium constant expression that in Boston ratio of products two reactants with exponents determined by the stoichiometry of the reaction furthermore only non-solid material in the reaction appears in the expression

71
Q

Interpolation

A

Is the process of estimating unknown values that fall between now and the values

72
Q

Extrapolation

A

Is an estimate of the value based on extending a known sequence of values are facts behind the area that is certainly known

73
Q

The intermolecular forces that exist among the molecules of ammonia gas are:

A

Both dipole dipole in London dispersion forces

74
Q

Electron transitions and energy

A

Electrons to travel the furthest between sub showers you met the most high energy photons and us have a higher frequency and a small wavelength. For electrons that traveled the shortest distance within subshells the longest wavelength is associated with a low frequency and low energy

75
Q

Sponification

A

Is base catalyzed hydrolysis of esters and as a result also breaks up lactones

76
Q

Kcat and Vmax

A

Is directly proportional to Vmax

77
Q

Beta minus particle

A

ß 0/-1

78
Q

How conductors work

A

Free electrons arrange themselves on the surface of the conductor but they also contain found electrons to Adams and the collective electric field produced by conductor can cancel out any electric field that is external that’s making the capacitor zero

Tests and Questions (3 decks)

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