3.1.9.2 determining rate equations

• how are rate equations determined experimentally?

  by monitoring the concentration of a reaction mixture over time
• what can the concentration-time graph be used to find?

  the rate by drawing a tangent to the curve at t=0
• rate equation graph

  
• the tangent is the only time in the reaction where the exact concentration is known
• this method is then repeated at varying concentrations to get a set of data for concentration and rate of reaction
• a graph of rate against concentration can then be plotted to determine the order of reaction