Solutions And pH Test

Question 0

Suspension

Answer 0

A mixture with large undissolved particles that can easily be separated.

Question 1

Mixture

Answer 1

A combination of two or more substances that are not chemically bonded.

Question 2

Colloid

Answer 2

Small undissolved particles that cannot be easily separated.

Question 3

How do you determine percent concentration?

Answer 3

Amount of solute
———————— • 100%
Amount of solution

Question 4

Solution

Answer 4

Solute + Solvent

Concentration is always the same throughout solutions

Question 5

Dilute Solution

Answer 5

Solutions with a small amount of solute dissolved

Question 6

Saturated solution

Answer 6

No more solute will dissolve in a solvent

Question 7

Solubility

Answer 7

The amount of solute that can dissolve into a specific solvent at a specific temperature

Question 8

Factors that affect solubility?

Answer 8

Temperature:
Increase in temperature causes solubility to increase is liquids and solids but decrease in gases

Pressure:
Increase in pressure causes solubility in gases to increase

Type of solvent:
Polar molecules dissolve polar while non polar molecules dissolve non polar

Question 9

Acid

Answer 9

Any substance that produces hydrogen ions when in solution

Question 10

Bases

Answer 10

Any substance that produces hydroxide ions when in solution

Question 11

Indicator

Answer 11

Any substance that changes color in the presence acids or bases
Some indicators show the range of pH
Examples: Litmus paper and cabbage water

Question 12

pH Scale

Answer 12

A scale used to determine the concentration of hydrogen ions

Question 13

What is strength of an acid/base determined by?

Answer 13

Strength of an acid/base is based on its ability to produce ions.
Some molecules break apart more easily making them strong.

Question 14

What is a neutralization reaction?

Answer 14

Neutralization is a reaction between an acid and a base of equal strength that produces a salt and water.

Question 15

What does an acid taste and feel like?

Answer 15

Taste sour and feel burning

Question 16

What does a base taste and feel like?

Answer 16

Taste bitter and feel slippery

Question 17

How does an acid react with metal and litmus paper?

Answer 17

An acid is corrosive to metal and turns blue litmus paper red.

Question 18

How does a base react with metal and litmus paper?

Answer 18

A base is non corrosive and turns red litmus paper to blue.

Question 19

What is an example of a base?

Answer 19

Household cleaners, soap, baked goods

Question 20

What is an example of an acid?

Answer 20

Fruits, batteries, heavy duty cleaners

Question 21

Concentration solution

Answer 21

A solution with a large amount of solute dissolved

Question 22

What number does a neutral fall under on a pH scale?

Answer 22

7

Question 23

What numbers does an acid fall under on a pH scale?

Answer 23

1-6.9

Question 24

What numbers does a base fall under on a pH scale?

Answer 24

7.1-14