Exam #2

eV in Joules
1.602 E-19 J
Units of Joules
kg*m^2/s^2
mass of electron
9.109 E -31 kg
planck’s constant (h)
6.626 E-34 J*s
Avagadro’s constant
6.022 E 23
Energy from frequency
E = hf
Energy from wavelength
E = h*c/?
Relationship between c, f, ?
f*? = c
Value of c
3 E 8
ammonium
NH_4 +
nitrite
NO_2 -1
nitrate
N0_3 -1
sulfite
SO_3 2-
sulfate
SO_4 2-
hydrogen sulfate
HSO_4 1-
hydroxide
OH 1-
Cyanide
CN 1-
phosphate
PO_4 3-
hydrogen phosphate
HPO_4 2-
dihydrogen phosphate
H_2PO_4 1-
carbonate
CO_3 2-
hydrogen carbonate
HCO_3 1-
hypochlorite
ClO 1-
chlorite
ClO_3 1-
chlorate
ClO_3 1-
perchlorate
ClO_4 1-
acetate
C2H3O2 1-
permanganate
MnO4 1-
chromate
CrO4 2-
dichromate
Cr207 2-
peroxide
O2 2-
x

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