Chemistry 110 - Review Sheet for Exam #2

You should be familiar with key terms listed and you should solve the assigned problems from course syllabus. Some of these problems, or problems very similar, will be on the exam.

Chapter  4:
  • aqueous solution
  • polar molecule
  • solubility
  • solute
  • electrical conductivity
  • strong electrolyte
  • weak electrolyte
  • nonelectrolyte
  • acid (proton donor)
  • strong acid
  • weak acid
  • strong base
  • weak base
  • molarity (mol/L)
  • dilutions
  • McVc = MdVd
  • precipitation reaction
  • precipitate (solid)
  • molecular equation
  • complete ionic equation
  • net ionic equation
  • spectator ion
Chap 4 (continued)
  • neutralization reaction
  • MaVa=MbVb
  • titration
  • oxidation state
  • oxidation (loss of electrons)
  • reduction (gain of electrons)
  • oxidizing agent
  • reducing agent
  • half-reactions

Chapter 5:

  • barometer
  • mm Hg
  • torr
  • standard atmosphere
  • pascal
  • Boyle's law
  • ideal gas
  • Charles's law
  • absolute zero
  • Avogadro's law
Chap 5 (continued)
  • universal gas constant (R)
  • ideal gas law (PV = nRT)
  • molar volume (22.42 L)
  • standard temperature pressure (STP)
    • 0oC (273.15 K)
    • 1 atm (760 torr)
  • Dalton's law of partial pressures
  • partial pressure (PT=P1+P2+...)
  • mole fraction (χ=χ1+χ2+...)
  • kinetic molecular theory
  • diffusion
  • effusion
  • Graham's law of effusion
  • real gas
  • van der Waals equation
  • atmosphere
  • air pollution
  • acid rain
  • ozone
Titration formulas
  • MaVa=MbVb
  • 2 MaVa=MbVb
  • 3 MaVa= 2 MbVb
  • x MaVa= y MbVb
Acid/base combinations, for titration equations
  • HCl + NaOH → HOH + NaCl
  • H2SO4 + 2 NaOH → 2 HOH + 2 M2SO4
  • 2 H3PO4 + 3 Ca(OH)2→ 6 HOH + 2 Ca3(PO4)2
  • HxA + M(OH)y → HOH + MA

PV = nRT

R = 0.08206 L atm
 mol K

R = 62.36 L torr
      mol K

1 atm = 760 torr = 101,325 Pa

STP = 1 atm & 0oC

oC = (oF-32)/1.8

oF = 1.8oC + 32

K = oC  + 273.15

1 calorie = 4.184 J

H2O Cp.= 1 cal/goC

qp (gained) = -qp (lost)

qp = Cp x mass x ΔT

qv = Cv x ΔT

ΔE = q + W

work = - PΔV

 ΔH = ΔE + PΔV