3.1.2.2 The mole and Avogadro constant

• What is the Avogadro constant?

  6.022 x 10^23
• What is 1 ton equal to?

  1000000 g
• Equation for moles

  Moles = mass/mr
• What is the concentration formula?

  C= moles/volume
• What is the mole?


  The amount of substance is measured using a unit called the mole (mol for short) and given the symbol n.
• How do you calculate the number of particles using the Avogadro constant?


  Number of particles = Number of moles × Avogadro’s constant
• What is the mass of 1 mole of water?

  Mr of H2O=(1.0×2)+16.0=18.0, so 1 mole of water has a mass of 18.0g.
• Mr =Molar mass= the mass of 1 mole of a substance
• The mole as applied to electrons, atoms, molecules, ions, formulas and equations
• How to convert from cm3 to dm3

  divide by 1000
• Units for avogadros constant

  mol-1