Common Lab Reagents
Note that the concentrations of these reagents are not stated on the labels. Here is a table of concentrations that you MUST MEMORIZE (well... at least know hydrochloric, nitric, and sulfuric acids, and ammonia).

Name

Approximate Molarity

Acids:

Acetic
17.4 M
Hydrochloric
12.1 M
Hydrofluoric
28.9 M
Nitric
15.9 M
Perchloric
11.7 M
Phosphoric
14.8 M
Sulfuric
18.0 M
Bases:

Ammonia
14.5 M
Sodium Hydroxide (50% w/w)
19.4 M
Potassium Hydroxide (45% w/w)
11.7 M