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BR Chem Ch1
Flashcards from chapter 1 of Berkley Review's chemistry book (2010)
Question | Answer |
---|---|
Beer's law | A=e[C]l Works for all wavelengths, but works best at lambda max |
Molarity (M) | (moles solute)/(volume solution) |
Molality (m) | (moles solute)/(kg solvent) |
Mass Percent | (mass solute)*100/(mass solution) |
Density | (mass solution)/(volume solution) |
Dilution formula | MiVi = MfVf |
Dilution by 10 | 1 part solute, 9 parts solvent |
Soluble | - Group IA, NH4+ - Nitrate NO3- - Cl-, Br-, I- (except Ag+ and Pb2+) - Sulfate SO4(2-) (except Ba2+, Pb2+, Hg2+, Ca2+) |
Insoluble | - Carbonate (CO3[2-]), Chromate (CrO4[2-]), Phosphate (PO4[3-]), Sulfide (S2-), Hydroxide (OH-) |
Oxidation state rules | O: -2 (-1 in peroxides) H: +1 Halogens: -1 Alkali metals: +1 |
Oxidation | Loss of electrons (oxdidation state goes up) |
Reduction | Gain of electrons (oxidation state goes down) |
Intensive | Does not depend on amount |
Extensive | Depends on amount |