Solutions

Question 1

Solution

Answer 1

Homogenous mixture

Question 2

Properties of a solution

Answer 2

• Transparent
• Cannot be filtered
• Particles are evenly distributed

Question 3

What are the two parts of a solution?

Answer 3

Solute and solvent

Question 4

Solute

Answer 4

That which dissolves in a solvent

Question 5

Solvent

Answer 5

That which dissolves the solute

Question 6

Iodine dissolves in ethanol. Label the solute and solvent

Answer 6

Iodine is the solute, ethanol is the solvent

Question 7

Dilute solution

Answer 7

Contains small amount of solute compared to solvent

Question 8

Concentrated solution

Answer 8

Contains large amount of solute compared to solvent

Question 9

As temperature increases, the solubility of salts

Answer 9

Also increases

Question 10

As teneortaure increases, the solubility of gases

Answer 10

Decreases

Question 11

To increase the solubility of a gas

Answer 11

• Lower temperature
• High pressure

Question 12

As the temperature of the ocean increases, the concentration of dissolved oxygen

Answer 12

Decreases

Question 13

Saturated solution

Answer 13

The solvent dissolved the maximum amount of solute at a specific temperature

Question 14

Unsaturated solution

Answer 14

The solvent dissolves less than the maximum amount of solute at a specific temperature

Question 15

Supersaturated solution

Answer 15

The solvent dissolves more than the maximum amount of solute at a specific temperature

Question 16

How is solution concentration determined (3)?

Answer 16

1) Mass percent of solute in a solution
2) Parts per million
3) Molarity

Question 17

Mass percent =

Answer 17

Grams of solute/grans of total solution x 100

Question 18

PPM =

Answer 18

Grams of solute/total grams of solution x 1000000

Question 19

Solutions that produce the highest boiling points and lowest freezing points have

Answer 19

The most number of moles of dissolved ions

Question 20

Molarity =

Answer 20

Moles of solute/liters of solution

Question 21

Breakdown the number of moles of dissolved ions in

2 M of KBr
3 M of CH3CH2OH
1 M of MgF2

Answer 21

2 M of KBr -> 2K+1 + 2Br-1 = 4 moles of dissolved ions

3 M CH3CH2OH = 3 moles of dissolved ions (molecular substance)

1M MgF2 -> 1Mg+2 + 2F-1 = 3 moles dissolved ions

Question 22

Molecular substances don’t breaks up. Instead, they

Answer 22

Form distinct molecules

Question 23

Number of moles in original solution =

Answer 23

Number of moles in final solution