This little website shows you the pH of various acids, bases, food products, bodily fluids, cleaners, and more!
Here's a random substance:
pH of Salicylic Acid
Chemical formula: C7H6O3
Also known as: 2-hydroxybenzoic acid
100 mM
Saturated
10 mM
1 mM
Salicylic Acid is Strongly Acidic
At concentration of 1 mM, it has a pH of 3.21
At concentration of 10 mM, it has a pH of 2.57
At concentration of 100 mM, it has a pH of 2.02
At concentration of Saturated, it has a pH of 2.4