Measuring rates of reaction

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

Precipitation:

• 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…