CHM 2046C                                              Name: __Answers____

                 Module Eight Part II: Solutions Chapter 14    

_____(04) N. Units of Concentration/definitions Section 14.1 p659

4

 

 

_____(12) 0. Concentration Calculations: molality, % by weight, mole fraction Sect 14.1 p659

12

 

 

_____(04) P. Enthalpy of Solution Calculation Section 14.2 p666

4

 

 

_____(05) Q. Factors Affective Solubility Section 14.3 p 669

5

 

 

_____(04) R. Colligative Properties Problem: Raoult's Law Section 14.4 p672

4

 

 

_____(04) S.Colligative Properties Problems: Boiling Point Elevation Section 14.4 p674

4

 

 

_____(04) T.Colligative Properties Problems: Freezing Point Depression Section 14.4 p677

4

 

 

_____(04) U.Colligative Properties Problems: Molar Mass Determination Section 14.4 p678

4

 

 

_____(04) V.Colligative Properties Problems: Osmotic Pressure Section 14.4 p681

4

 

 

_____(10) W. Vocabulary Chapter 14

10

 

 

_____(10) X. Solution Discussion Chapter 14

10

 

 

_____(15) M. Multiple Choice Chapter 14

15

 

 

_____(80) Module Eight Part II Chapter 14  Total

 

 

 

 

Part N: Units of Concentration    4 points

 

Show the unit factor for each of the following and also label each unit as solute, Solvent or Solution:

 

1,  Molarity

 

Moles solute

--------------------

Liter solution

 

 

2.  Mole Fraction

 

Moles solute

--------------------

Moles solution

 

 

3. Weight %

 

Grams solute

--------------------------------

100 Grams solution

 

 

4. Molality

 

Moles solute

--------------------

1 kg solvent

 

5. Parts Per Million

 

Grams solute

--------------------

1,000,000 Gram solution