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

neutralisation reaction between iron and potassium manganate

Extracts from this document...

Introduction

Introduction Titration is a method to find out how much acid would neutralize an alkali The following equation shows the neutralisation reaction between iron and potassium manganate i will be carrying out this reaction in my experiment 5Fe2+(aq) + MnO4- (aq) + 8H+ --> 5Fe+3(aq)+Mn+2(aq) + 4H2O(l) We made the ammonium sulphate solution with the concentration of 0.05moldm3 with the volume 250cm3 To calculate the molecular mass i added up all the elements, (Fe(NH4)2 (SO4)2 6H2O), the molecular ...read more.

Middle

clamp stand * standard solution * Lab coats should be worn during the practical * Eye protection should also be worn Titration Rough 1 2 3 4 Initial burette reading 28.00 26.60 26.90 26.80 26.60 Titre 28.00 26.60 26.90 26.80 26.60 METHOD 1) set up apparatus 2) fill burette with potassium manganate solution 3) get 250ml of the standard solution transfer it to a flask using a pipette 4) ...read more.

Conclusion

+ MnO4- (aq) + 8H+ --> 5Fe+3(aq)+Mn+2(aq) + 4H2O(l) The reaction shows that 5 moles of iron II neutralises 1 mole of potassium mangnate 0.00125/5 = 0.00025 From this we can work out the no of moles of potassium mangnate 0.00025x1000/26.60 = 0.0093 To find the percentage of iron i used this equation Moles of iron in 25cm3/moles in 25cm3XMr = 0.069/0.466=0.14263X100 = 14.8% i checked this value and compared my result to the original value of 14.3 and noticed i wasn't far off ...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 Aqueous Chemistry 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 Aqueous Chemistry essays

  1. Marked by a teacher

    Enthalpy of Neutralisation.

    3 star(s)

    This makes the ?H of ethanoic acid slightly lower than that of the strong acids. Thus, the standard molar enthalpy of neutralisation of ethanoic acid is -55.2 kJ mol-1. This is considered to be an exothermic reaction. Neutralisation reaction is the reaction between an acid (hydrochloric acid)

  2. How much Iron (II) in 100 grams of Spinach Oleracea?

    In most redox reactions an indicator needs to be added to the experiment to show the end point of the reaction but this is not necessary as the reaction that occurs produces a very obvious colour change (7). The Fe2+ ion present in the Iron (II)

  1. Determining the purity of Iron Wool.

    is surrounded by 5 water molecules producing a hydrated crystal. Unlike a redox-titration, an indicator is needed in an acid-base titration. "Indicators are substances which change colour according to the hydrogen ions concentration of the solution to which they are added"2, for example the experiments calls for the use of

  2. Energy Change Associated With Neutralisation

    I will then calculate the difference. I have decided to take the temperature of the products after 1 minute. I conducted a preliminary experiment for 1 minute and 2 minutes and I found that there was no difference in temperature between them.

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