CH102 Lab Final Exam Formulas & Constants
c = = 3.00 x 108 m/sec E= h
1 m = 1 x 109 nm h = 6.626 x 10-34 J-sec
M = moles solute / liter solution
Mass % = mass solute / mass solution x 100
1 mole = 1000 millimoles
pH = - log[H3O+]
[H3O+] = 10-pH
Ecell = Ecathode- Eanode
Solubility Rules
1. Compounds of 1A metal ions and NH4+ are soluble.
2. Compounds of NO3-, ClO3-, ClO4-, and C2H3O2- ions are soluble.
3. Compounds of Cl-, Br-, and I- are soluble except those of Ag+, Cu+, Tl+ Hg22+, and Pb2+.
4. Compounds of SO42- are soluble except those of Ca2+, Sr2+, Ba2+, and Pb2+.
5. Most other ionic compounds are insoluble.
