Chapter 9 - Solutions

Question 1

• are homogeneous mixture of two or more substances
• form when there is sufficient attraction between the solute and solvent molecules

Answer 1

Solutions

Question 2

Solution is form when there is _____ ____ between the _____ and _____ molecules

Answer 2

• sufficient attraction
• solvent and solute

Question 3

Two component of Solution

Answer 3

1. Solvent - present in a larger amount
2. Solute - present in a smaller amount

Question 4

• it maybe a liquid, gas, or solid
• are spread evenly throughout the solution
• it is mixed with solvents
• can be separated by evaporation
• are not visible, but they can give color to the solution

Answer 4

Solutes

Question 5

Solutes cannot be sepatated by ________, but can be separated by ________

Answer 5

• filtration
• evaporation

Question 6

Solutes are not _____, but they can give a _____ to the _____

Answer 6

• visible
• color
• solution

Question 7

It is one of the most common solvents in nature

Answer 7

Water

Question 8

Water is a _____ molecule due to polar _____ bonds

Answer 8

• polar
• O - H

Question 9

_____ forms when the ______ interactions are larger enough to overcome the _____ interactions and the _____ interaction

Answer 9

• Solutions
• solute-solvent
• solute-solute
• solvent-solvent

Question 10

Solutions will form when the solute and solvent have ____ _____: “like dissolves like”

Answer 10

similar polarities

Question 11

Possible Combinations of Solutes and Solvents:
Solutions Will Form

Answer 11

Solute:
Polar
Nonpolar

Solvent:
Polar
Nonpolar

Question 12

Possible Combinations of Solutes and Solvents:
Solutions Will Not Form

Answer 12

Solute:
Polar
Nonpolar

Solvent:
Nonpolar
Polar

Question 13

How does a solutions form with Polar Solutes?

Answer 13

Polar solutes require polar solvents for a solution to form

Question 14

Example of Polar molecule that can form a Solution

Answer 14

Methanol (CH3 - OH), is soluble in water because methanol has a polar -OH group to form hydrogen bonds with water

Question 14

How does a solutions form with Nonpolar Solutes?

Answer 14

Nonpolar solutes require nonpolar solvents for a solution to form

Question 15

Example of Nonpolar molecule that can form a Solution

Answer 15

Iodine (I2), oil, or grease, do not dissolve in water because there are essentially no attractions between the particles of a nonpolar solute and the polar solvent