Chemistry equations

• moles


  Mass / Mr
• Percentage yield


  actual yield/theoretical yield x 100
• Atom economy


  (Mr mass of desired products/ Mr mass of all products) x 100
• moles - volume


  concentration x volume
• rate of reaction


  quantity of reactant used/time taken
• Rf value


  Distance travelled by substance / distance travelled by solvent
• Relative atomic mass


  (% of isotope 1 x mass of isotope 1) + (% of isotope 2 x mass of isotope 2) / 100
• Volume of a gas=

  (mass of gas / mr)x24
• Concentration(moles)=number of moles/volume
• Concentration(g/dm^3) = mass (g) / volume (dm^3)
• Cm—->dm

  /1000