Volumetric analysis

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Caramel

Cards (15)

  • The molar volume depends on the nature of the substance and varies for different materials.
  • To calculate the concentration, divide the number of moles of solute by the total volume.
  • The volume of the solution is calculated by multiplying the mass of solute (in grams) by its molar mass (in g/mol).
  • Gases have much larger molar volumes than liquids or solids.
  • Molar volume refers to the volume of one mole of a substance in its standard state at standard temperature and pressure.
  • Molecular weight = MW = relative molecular mass x 1000
  • MnO4- +8H+ +5Fe2+ gives Mn2+ + 5Fe3+ +4H2O
  • Oxidation is the loss of electrons whereas reduction is gain of electrons
  • Molecular mass of FAS is 392g/mol
  • FAS molecular formula is FeSO4.(NH4)2SO4.6H2O
  • Molecular mass of KMnO4 is 158g/mol
  • Molecular mass of oxalic acid is 126g/mol
  • KMnO4 reacts with HCl to form MnCl2, Cl2 and water.
  • 5 e- transfer takes place in KMnO4 in acidic medium
  • 1 and 3 electron transfer takes place in KMnO4 in basic and neutral medium respectively