Chapter 3:Properties of Water

Question 0

What is a solvent?

Answer 0

The material doing the dissolving

Question 1

A solution is made up of?

Answer 1

A homogenous mixture

Question 2

What is a solute?

Answer 2

The substances dissolved in solvent

Question 3

Aqueous solutions:

Answer 3

Water is the solvent

Question 4

Hydrophilic

Answer 4

• water loving

- ionic/ polar molecules will dissolve

Question 5

Hydrophobic:

Answer 5

• water fearing

- nonpolar molecules

Question 6

Amphipathic:

Answer 6

• both polar and nonpolar regions

- micelle structures

Question 7

Concentration:

Answer 7

amount of solute dissolved in a unit volume of solution

Question 8

Molarity:

Answer 8

Number of moles of a solute dissolved in 1 L of water

Question 9

Heat of Vaporization:

Answer 9

Amount of heat required to convert one gram of liquid water to water vapor

Question 10

Heat of Fusion:

Answer 10

Amount of heat required to convert one gram of solid water (ice) to liquid water

Question 11

Name 6 Water functions:

Answer 11

1. Chemical reactions
2. Support
3. Removal of toxic waste
4. Evaporative cooling
5. Cohesion & Adhesion
6. Surface tension

Question 12

Acids:

Answer 12

+
Release H

                           \+ Stronger acid = > H 

pH < 6.9

Question 13

Bases:

Answer 13

_
Release OH

pH > 7.1

Question 14

What is the equation for pH?

Answer 14

+
pH = -log [H ]
10

Question 15

What is the pH of neutral?

Answer 15

pH = 7.0

Question 16

What helps keep a constant pH

Answer 16

Buffers

Question 17

CO gain is ?

2

Answer 17

Acidosis

Hypoventilation

Question 18

CO lost is?

2

Answer 18

Alkalosis

Hyperventilation