• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Assessed practical on hydrolysis of halogenoalkanes.

Extracts from this document...


Assessed practical on hydrolysis of halogenoalkanes Hydrolysis is the means in which to make an alcohol using the OH from water. Our reactants are the halogenoalkanes and hydroxide. A halogenoalkane is a hydrocarbon that has been bonded with a group7 element, for example: * Fluorine * Chlorine * Bromine * Iodine We will only be using primary halogenoalkanes. A primary molecule is where the nucleophile is on the end. We determine the classification by looking at the carbon atom that the nucleophile is bonded with, if the carbon atom is bonded to one other carbon only it is primary, if it is bonded with two then secondary and if bonded with three then it is tertiary. ...read more.


I will only use chlorine, iodine and bromine as fluorine is such a strong reactant we will not be able to break the bond between it and the carbon atom. Hence iodine, the weakest bond reactive, will react the fastest because its bond will be broken easily, then bromine and the chlorine. In this experiment I am investigating the rate of reactions for the Halogenoalkanes. I know that one mole of C4H9X plus one mole of OH� will give me one mole of butanol and on mole of X� I can use this information to determine how completed the reaction is at any given point in time. I do this by taking a sample of my reaction stopping (or at least dramatically reducing) ...read more.


I would set up controls for each experiment and timed how long it will take for the test to get to the same state as the control. This is not very accurate as the colours for each are different and for chlorine it would go white this is not a good colour to spot. The molar method is a lot more accurate and although more Complex. I will use the silver nitrate method to carry out the experiment. This is because it is simple and will still show which reaction is the fastest. The silver nitrate is in solution this means I will not have to add any water to the experiment and the reactions will all happen as one step rather then the hydrolysis followed by the titration. J. P. Younghusband Page 1 04/05/2007 ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Patterns of Behaviour section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related GCSE Patterns of Behaviour essays

  1. Plan to investigate the hydrolysis of halogenoalkanes

    and 2.6cm3 of l-iodobutane in the third test tube (C). 3. Place all three test-tubes in a test tube rack. Next measure out 4cm3 of Silver nitrate to add to the haloalkanes. Add the 4cm3 of Silver nitrate and add this to all three test tubes (A, B and C).

  2. Rates of Reaction- Hydrolysis of Urea by Urease

    According to research urease can still function at a minimal temperature of 20�C and between 10�C and 30�C the rate of reaction doubles. However the theories which will be evaluated is theory A, B and C. Theory A is based on a previous experiment which demonstrated that the optimum temperature

  1. Halogenoalkanesshow how the rate of reaction of the halogenoalkanes changes in respect to the ...

    Due to my investigation requiring a substitution reaction to take place, I will need to use a primary halogenoalkane. Other less important factors include the solvent, temperature and concentration of the sodium or potassium hydroxide solution however I will be ignoring these as they carry less of an influence.

  2. The aim of this experiment is to determine the rate of reaction of hydrolysis ...

    Pour 2cm�of ethanol into each of the four test tubes and mark them with the letters A to C. 3. Add 3-4 drops of 1-chlorobutane to A, 3-4 drops of 1- bromobutane to B, 3-4 drops of iodobutane to C.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work