Calculating the Rate of Reaction

• Equation for rate of reaction

  Amount/time
• What is the formula to calculate the rate of reaction?


  Rate of reaction = amount of reactant used OR product formed / time
• How can the rate of reaction be measured?


  By measuring the amount of reactants used or products formed over time
• If one of the products is a gas, how can you measure the rate of reaction?


  Measure the mass of the reaction mixture before and after the reaction
• What happens to the mass of the reaction mixture when a gas is produced?


  The mass of the mixture will decrease
• What are the units for the rate of reaction when measuring mass?


  g/s
• How can the amount of a reactant be measured?


  In moles (mol)
• How is the concentration of a reactant calculated?

  Concentration = amount (mol) / volume (dm³)
• What are the units for concentration?


  mol/dm³
• How can the amount of products formed be measured if one of the products is a gas?

  Measure the total volume of gas produced in cm³ with a gas syringe
• What are the units for the rate of reaction when measuring gas volume?


  cm³/s
• How can the time taken for a reaction mixture to change color be used to measure the rate of reaction?


  By timing how long it takes for the mixture to change color
• What is the formula for calculating the rate of reaction based on color change?


  Rate of reaction = 1 / time taken for solution to change color
• What are the different methods to calculate the rate of reaction?


  By measuring reactants used, products formed, or time for color change
• What does turbidity refer to in the context of measuring reaction rates?


  Turbidity refers to the cloudiness of a solution