Full Length Exam Weaknesses (C/P)

Question 1

Introducing a catalyst lowers the

Answer 1

activation energy, always

Question 2

How many reactants does a second order reaction have?

Answer 2

it can only have two

Question 3

In a spontaneous reaction, we know Delta G must be <0, and therefore what must Keq be?

Answer 3

> 1

Question 4

-log[H+] is equal to ….

Answer 4

pH

Question 5

a very finely ground powder, suspended in a solution, but not dissolved, is known as

Answer 5

a colloid

Question 6

molecules with hydrogen bonds have an increased boiling point or decreased?

Answer 6

increased.

Question 7

In a neutral (uncharged) molecule, the oxidation numbers must add up to

Answer 7

zero

Question 8

Mean Arterial Pressure at the head level but be (lesser/greater) than at the heart

Answer 8

lesser

Question 9

During systole, elastic energy potential is stored in the ___

Answer 9

arterial wall

Question 10

NH3 functions as a Lewis _____ because of its lone pair

Answer 10

Lewis Base

Question 11

At STP, 1 mole of gas occupies ___- Liters

Answer 11

22.4 L

Question 12

Most proteases are stereospecific, meaning they only cleave what form of peptides?

Answer 12

L- forms (and therefore D- amino acids display resistance to proteolysis)

Question 13

What is the relationship between power, work and time?

Answer 13

Power (W) = Work (J) / Time (sec)

Question 14

The molecule that is losing the electrons is referred to as the ____ agent

Answer 14

reducing

Question 15

Is an oxidized form of a molecule one that contains a hydroxyl group or a ketone?

Answer 15

A ketone, as it has a double bond to oxygen (more bonds to oxygen)

Question 16

Does a higher melting point mean higher or lower stability of a molecule?

Answer 16

higher stability

Question 17

Strong acids have (strong/weak) conjugate bases

Answer 17

weak

Question 18

Asking which compound has the most stable conjugate base is therefore also asking…..

Answer 18

which compound is the weakest acid (most stable acid)

Question 19

What is Ohms law?

Answer 19

V= IR (voltage= current x resistance)

Question 20

chiral centers have what sort of hybridization

Answer 20

sp3

Question 21

What color has the shortest wavelength?

Answer 21

Violet

Question 22

What color has the longest wavelength?

Answer 22

Red

Question 23

wavelength and frequency are _____ proportional

Answer 23

inversely

Question 24

what color has the highest frequency?

Answer 24

violet

Question 25

in a second order reaction, rate is dependent on ______ reactant

Answer 25

BOTH of the reactants

Question 26

Q is the concentration of _____

Answer 26

products

Question 27

T or F; liquids do not typically undergo a large change in volume when temperature changes

Answer 27

T; gases, on the other hand, do change in volume-- based on temperature

Question 28

the ____ of a sound wave is the reciprocal of the frequency

Answer 28

period (period and wavelength are essentially the same thing)

Question 29

the Doppler Effect shifts ______

Answer 29

frequency

Question 30

Photons (DO/ DO NOT) have a charge

Answer 30

do not

Question 31

pancreatic secretions are (acidic/basic)

Answer 31

acidic

Question 32

hemiacetals are present in what biological molecule

Answer 32

sugars

Question 33

Decarboxylation is the loss of what functional group

Answer 33

-COOH

Question 34

____ is equal to the pH when half of the compound is in a protonated form and the other half is in a deprotonated form

Answer 34

the pKa

Question 35

deprotonation occurs at a higher/lower ph

Answer 35

higher (more basic)

Question 36

a shorter wavelengh is equal to photons of a ____ energy

Answer 36

higher/larger

Question 37

going DOWN the periodic table, nucleophilicity ____

Answer 37

decreases

Question 38

The products of the Pentose-Phosphate Pathway are:

Answer 38

Fructose-6-phosphate Glyceraldehyde-3-phosphate NADPH Ribose-5-Phosphate

Question 39

Amps x Time (in seconds) gives you the _____

Answer 39

charge

Question 40

Centripetal force is the force pointing away from the center of a circle (T or F)

Answer 40

F, it is the force pointing towards the circle

Question 41

Aromatic crown ethers are (soluble/insoluble) in water and alcohol

Answer 41

insoluble

Question 42

WE know that all human amino acids have an L configuration, and this corresponds to (R) or (S) stereochemistry?

Answer 42

S

Question 43

T or F; Catalysts affect Delta G

Answer 43

False, just activation energy

Question 44

Would a larger atom or a smaller atom form a more stable conjugate base?

Answer 44

Larger

Question 45

When converting from an aldehyde to carboxylic acid, is an oxygen gained or lost?

Answer 45

A bond to oxygen is gained (oxidation occurs)

Question 46

Reverse transcriptase is used on ___

Answer 46

mRNA, to then create DNA

Question 47

What causes amino acids to migrate in electrophoresis

Answer 47

Their charge

Question 48

Aluminums oxidation number is always

Answer 48

+3

Question 49

Hydrogen's oxidation number is *typically*, and what is the exception

Answer 49

+1, except when bonded to metals (LaH, NaH, CaH2) and then it's number is -1

Question 50

Flourine's oxidation number is always

Answer 50

-1

Question 51

Alkali metals oxidation number is typically

Answer 51

+1

Question 52

Alkaline earth metals oxidation number is typically

Answer 52

+2

Question 53

Oxygen's oxidation number is almost always

Answer 53

-2, except when in hydrogen peroxide (H2O2) or peroxide (O2)2- when its number is -1