Thursday, May 28, 2009

pH Scale

(1.) The pH scale measures up to 0 to 14

(2.) Acids are 0 to 6.9 on the pH scale 
       Bases are 7.1 to 14 on the pH scale

(3.) An example of an acid with a corresponding pH is orange juice on 2.
       An example of a base with a corresponding pH is wine 8.

(4.) Number 7 on the pH scale equals neutral (not an acid or base)

Monday, May 18, 2009

Solutions

coffee -   hot water; solvent, coffee mix; solute 

tea-          hot water; solvent, tea bag/mixture; solute

apple juice-  water; solvent, apple; solute

orange juice- water; solvent, orange juice concentration; solute

kool aid- water; solvent, the powder in kool-aid; solute