Chemistry

CHAPTER 14

1.     Define:

a.     Suspension

b.     Colloid

c.     Soluble,

d.     Miscible,

e.     Immiscible

f.      Soluble

2.     What is a homogeneous mixture? What is a solution? What is a solvent? What is a solute?

Solution is made up of two different parts:

a)     Solvent (does the dissolving)

b)    Solute (what is being dissolved)

·      When you measure a solution, you will see the percent by weight or percent by volume.

·      Universal Solvent: Water (the most general type)

·      The ability of a solvent is based on the type of molecule it is.

o   Example:

§  Polar: Water is a polar molecule

§  Non-Polar: Gas, Super Glue

3.     Tell how to find each of the following:

a.     Percent by mass

b.     Percent by Volume

c.     Molarity: Simple (we will use the most)

M = moles of solute/ liter of solution

d.     Molality:

m = moles of solute / kg of solvent