Measuring rates of reaction

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Rate of reaction = amount of reactant used or product formed        time

  • Rate of reaction can be observed either by measuring how quickly the reactants are used up or how quickly the products are formed
  • Usually a lot easier to measure products forming
  • There are different ways rate of reaction can be measured, precipitation , change in mass (usually gas given off) and the volume of gas given off


  • This is when the product of the reaction is a precipitate which clouds the solution
  • Observe a mark through the solution and measure how long it takes for it to disappear
  • The quicker the mark disappears, the quicker the reaction
  • Only works for reactions where the initial solution is rather see-through
  • Result is very subjective-different people might…


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