Thursday, November 8, 2012

Lesson 13 and 14

Lesson 13

A solute is a substance dissolved in a solution. A solvent is the substance in which a solute dissolves. A saturated solution is a solution that contains the max amount of a solute for a given amount of solvent. Molecules move from areas of high concentration to areas of lower concentrations. We also learned about molarity. The equation used to find molarity is pictured below.

 

Practice Problem

 

8. B

 

Lesson 14

In lesson 14 we put our knowledge from the previous lesson into practice. We also learned that concentration does not depend on the density of size of a sample. When dealing with ionic compounds, take all the ions in the equation into account. We also learned that volume is always expressed in liters for the equation.

Practice Problem

 

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