Chapter 2

Question 1

What is HB donor

Answer 1

FON

has H bound

Question 2

What is HB acceptor

Answer 2

FON

Has LP

Question 3

Hydrophobic effect

Answer 3

Forces hydrophobic molecules into a box

Exclusion

Question 4

Van der walls

Answer 4

Interactions

Are ages molecules in box

Question 5

Brønsted acid

Answer 5

H donor

Question 6

Brønsted base

Answer 6

H acceptor

Question 7

Electrostatic interactions

Answer 7

Between charge

Can be full partial or induced

Question 8

Why does ice float

Answer 8

Colinear orientation

Question 9

Types of noncovalent

Answer 9

Salt bridge
Van der waals
HB

Question 10

Strength order of bonds highest to lowest

Answer 10

Covalent, salt bridge, HB, DD, LD

Question 11

Salt bridge

Answer 11

Ionic interaction not bond between + and -

Question 12

Properties of HB

Answer 12

Shared e
Orbital overlap
Specific orientation
Electrostatic interaction

Question 13

Types of dipoles interactions

Answer 13

Dipole dipole (both fixed polar)
Dipole induced (one fixed one non polar)
Induced (both nonpolar)

Question 14

_____ dissociation _____ H+ _____pH

Answer 14

Greater
More
Lower

Question 15

Dissociation depends on what

Answer 15

pH

Question 16

Hydrophobic effect

Answer 16

Exclusion from H2O

Question 17

polar interactions

Answer 17

Differ in EN

Question 18

Trend in attraction between charges

Answer 18

Attraction increases with proximity
Repulsion decreases with distance
Need to optimize

Question 19

Half equivalence

Answer 19

Buffer is best (minimum change in pH)
pH=pKa
[HA] = [A]

Question 20

What is a buffer

Answer 20

Resistant to changes in pH

Question 21

Equivalence point

Answer 21

Base added = acid started

Question 22

How do we represent an attraction (HB)

Answer 22

Dotted line

Question 23

What is hydrophobic driven by

Answer 23

Entropy (measure of randomness)

Question 24

A strong acid ____

Answer 24

Completely ionizes