sowon Posted March 8, 2011 Report Share Posted March 8, 2011 ahhg ok i will not panic. ok so will anyone be so kind to help me with this topic. i'm thinking about investigating whether homologous series differ in reaction rate...so this also involves kinetics..which i am not very good at. i was thinking about doing a bromination but my BIGGEST PROBLEM is measuring the reaction rate. help anyone? should i completely change my idea? i guess if i'm desperate i'll do an investigation about their physical properties..but yeah :/ Reply Link to post Share on other sites More sharing options...
Keel Posted March 8, 2011 Report Share Posted March 8, 2011 Hi,Could you give us the title of your task so we know what is involved? I'm not sure whether there is a common reaction which you could do for 5 different homologous series.What you can do is to measure the time taken for ethen, propene, but-1-ene and pent-1-ene (change in chain length within ONE homologous series) to react with a fixed volume and concentration of bromine solution. Remember that the alkenes have to be in excess for the bromine solution to turn colourless. Reply Link to post Share on other sites More sharing options...
sowon Posted March 8, 2011 Author Report Share Posted March 8, 2011 this is a design lab so all i'm told to do is investigate homologous series. so my question is how do i measure that color change? like should it be subjective like whatever changes color first? and thank you for replying Reply Link to post Share on other sites More sharing options...
Keel Posted March 8, 2011 Report Share Posted March 8, 2011 this is a design lab so all i'm told to do is investigate homologous series. so my question is how do i measure that color change? like should it be subjective like whatever changes color first? and thank you for replying It could be subjective to keep it simple or you could you a colourimeter and label the point where the line stabalises to be the time in which the reaction has stopped (this is a unneccessary complication of the experiment). Reply Link to post Share on other sites More sharing options...
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