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

An experiment to find the strength of five Household Acids And Alkalis.

Extracts from this document...

Introduction

Chemistry Coursework Experiment Thomas Temple 10i An experiment to find the strength of five Household Acids And Alkalis. Introduction: In this experiment I hope to find out the strength of three household alkalines and two household acids. Prediction I plan to do this by using the theory of neutralisation. Neutralisation is when an Alkalae neutralises an Acid or vice-versa. Neutralisation happens when Hydrogen Ions from the acid react with the Hydroxide Ions from the Alkalae to form Water. H + OH H O (aq) (aq) (l) Acid + Alkalae Water (Neutral) The reason that this reaction works is that Acids give away Hydrogen Ions where as Alkalaes take them, and without this, neutralisation couldn't happen. So the Alkalae takes the Hydrogen Ions From the Acid so the Alkalae now has two Hydrogen Ions joined to one Oxygen Ion, which is left over from the Alkalae and this is called Water ( H2O ) which is neutral ( Ph7 ). In this experiment I shall be using alkalines to neutralise the Acid and acids to neutralise alkalines. Bases are chemical opposites of Acids and they are often called Antacids ( against Acids ). ...read more.

Middle

Although I think Kitchen Cleaner will be strongest I also think that it will only just be stronger than Carpet cleaner and I think that it could be a close contest between Kitchen and Carpet Cleaner. Safety: * Wear goggles at all times. * Always wash off any Acid or Alkalae spilt on your skin * Bags and coats under desks * Long hair tied back Apparatus: 1 10ml Measuring Cylinder, 1 Pipette, 1 100ml Conical Flask, 1 White Tile, 1 Bottle of Acid (1M ) and 1 bottle of each five household Agents (window cleaner , Carpet Cleaner , Toilet Duck , Bathroom Cleaner and Kitchen cleaner Diagram: Method: 1. Collect all of the apparatus. 2. Measure out 5ml/cm3 of the Base and pour it into the Conical Flask. 3. Add 8 drops of Universal Indicater to the Base. We use Universal Indicator because it has the widest range of colour of colour change and therefore it is the accurate of all the Indicaters. 4. Measure out 10ml/cm3 of Acid or alkaline ( 1m ). 5. As slowly as possible pour in the Acid or Alkaline, swirling the solution around after every pour to help the colour change. ...read more.

Conclusion

I cannot however say accuratly which out of all household Agents is the strongest because I have not tested all of them. By doing this experiment I have also proved that the theory of neutralisation works. Evaluation: Overall I was very pleased with the outcome of this experiment. Throughout the experiment I followed the Fair Test and this obviously made the results of this experiment more accurate. If I could do this experiment again to improve it I would: repeat the experiment more than three times, I would do the hole experiment again using different types of Acids and alkalines with perhaps different strengths and I would like to go on to test the strength of other household Alkalisand Acids ) Learn more about the theory of neutralisation and the process and to increase the accuracy of my current results. Another thing that I noticed when doing this experiment was that the reaction between alkalines and Acids was exothermic so in the future I would like to explore this in more detail by measuring the temperature of the solution throughout the reaction to try and gain a better understanding of neutralisation. In this experiment I also had no odd results so this means that the experiment was quite accurate. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Physical 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 AS and A Level Physical Chemistry essays

  1. The purpose of this experiment was to isolate and characterize macromolecules.

    The results from the chromatography revealed there to be no displacement. This indicates that the molecular weight was high because it was unable to move. In terms of solubility, the hydrolyzed nucleic acid was insoluble because both the highly polar acetic acid and highly polar nucleic acid will not dissolve each other.

  2. Identification of amino acids by chromatography.

    It is not ideal, as the separated components would be too small and indistinguishable. It is also not as speedy as Thin Layer Chromatography, or as simple a method as electrophoresis. In the method, the amino acids are separated over time (according to each composition)

  1. Antacid Lab. Are name brand antacids better than generic brand antacids to neutralize ...

    Generic brands are looked down on by the public because they contain chemical names that are not familiar to them. However, I think that generic brands contain natural ingredients that will help to neutralize the stomach acid faster than name brands.

  2. Investigating the rate of reaction between peroxydisulphate(VI) ions and iodide ions

    This will create more accurate and consistent results. Place this into the water bath. See Figure 3.1 below. Table 3.3. A table to show the different concentrations that make up each mixture Mixture Test Tube Boiling tube Volume (cm3) of KI(aq)

  1. Investigating the Rate of the Reaction between Bromide and Bromate Ions in Acid Solution

    Call a first aider if there are concerns. Next, I have examined in turn the risks each of the chemical substances that I will use in my experiments pose, as well as those produced as a result of the reactions that take place: o Potassium bromide, KBr, solid, aqueous o

  2. Chromatography experiment.

    of untreated orange juice * Pour TLC solvent into bottom of jam jar * Using tweezers place TLC into jam jar * Let TLC soak up solvent * When nearly at top take out and draw solvent line across Method (Part 3): * Take the results of method part 1

  1. Investigating how concentration affects rate of reaction

    was placed straight onto the table it would be much harder to see when the solution had turned colourless. I also conducted a pre-test to trial my method for investigating how temperature change affects the reaction rate. I had originally decided to monitor only the temperature of the water bath heating my solutions in boiling tubes.

  2. Electrochemistry - Inventing Better Batteries

    <Chemistry Guide, 2003>. In the case of the Daniell Cell when the Copper sulfate concentration is increased, the equilibrium positioned is moved and more of the solution is used, and thus generates higher voltage. Likewise, increasing the concentration of the solution of the Zinc sulphate results in the reverse effect,

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