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

Acid Rain Investigation

Extracts from this document...

Introduction

Acid Rain Investigation Background information: o There are many different kinds of erosion but acid rain or else wind erosion are the two main types which could have eroded the marble statue which was positioned in the garden close to the industrial site. o Acid rain is made up from of a cocktail of different acids e.g. sulphuric acid, nitric acid, carbonic acid. Sulphuric acid is released into the atmosphere from the burning of fossil fuels like coal and oil, nitric acid is given off from car exhaust fumes, These gases react with water vapour and oxygen from the atmosphere and with the help of sunlight turn to acids and fall to ground in the forms of precipitation with high acidity levels which are between pH 1.5 and 5 (acid rain or acid snow). o Sulphur dioxide is harmful to humans and can led to bronchitis and other lung diseases. o Sulphur is released into the atmosphere through burning fossil fuels; most of the world's air pollution is due to the smoke given off from burning things. ...read more.

Middle

With the results I gain from this experiment I will draw up a graph to show how the concentration has taken effect. Safety: Like all experiments safety is very important and everything should be done carefully, safety goggles should be worn at all times in this experiment, we are using acids which are very strong, especially nitric acid, and therefore can easily burn so extra care is needed. All rules for experiments should be fallowed, to prevent any unwanted accidents, e.g. chairs below tables, tie tucked in. Fair test: To make this experiment fair a number of things must remain the same through-out the investigation: 1. same volume of acid used through-out, will be 25cm3. 2. Same type of acid used in the testing, in this experiment it will be nitric acid which I will use. 3. Every investigation must be done in the same temperature, this will be room temperature. 4. Same weight of marble used which will be measured to two decimal places. 5. So my results are correct I will do each experiment twice and find the average from the two tries. ...read more.

Conclusion

Independent-this is what will be changed through-out the experiment, I will change the concentration of the acid for each part of the investigation. Dependent- I will measure the length of time it takes for each concentration of acid to erode the marble pieces. This will be done using a stop clock. Prediction: I think that if the concentration of the acid is increased the speed of the reaction will increase, this is because with a small concentration of acid mixed with marble there is less acid particles to react with the marble meaning there are fewer successful collisions, with a much larger concentration of acid mixed with marble more collisions will take place because there are more acid particles which means that the reaction will take less time. Suitable range of readings: I will have to collect enough readings from my experiment to draw a graph, this means I will need more than 5 readings, so If I record a reading every minute I should have enough information. I will do each experiment two times and take the average results. From this I will draw a graph to show the concentration of acid against time taken. ...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. Peer reviewed

    Atmospheric Pollution

    3 star(s)

    Nevertheless, it does cause problems. For example, it cause environmental damage, the gypsum may not be sold and it produces large amounts of carbon dioxide. Another option of reducing sulphur dioxide is the seawater scrubbing process, which is dissolving the sulphur dioxide in seawater.

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

    Repeat the experiment with the same catalyst until there are three results with times within 10% of the average time 10. Repeat steps 1-9 using 10 drops of each catalyst solution as well as one set of results without a catalyst Results table for testing different catalysts: Catalyst Repeat 1

  1. The Determination of rate equation

    A vertical straight line indicates that the order of the graph is first order reaction as stated in the theory above. First order = the rate of reaction depends directly upon the concentration of the reactant. If the concentration of the reactant is doubled, the rate doubles therefore from the

  2. Sulphuric Acid investigation

    It detects the number of protons in substance. The more protons, the more acidic the substance is. pH indicators themselves are either slightly acidic or slightly alkaline. This means that the pH readings cannot be exact. For more accurate readings, pH meters are used. This is due to them binding with the hydrogen ion or the hydroxide ions.

  1. detremining the rate equation

    After drawing the graph of rate against concentration for Na2S2O3 I obtained a straight line of best fit. The line of best fit shows that the rate is directionally proportional to the concentration. As the concentration increased the rate also increases in a proportional pattern.

  2. Determining the Concentration of Sulphuric acid

    Number of moles = 0.10(moldm-3) x 0.25 (dm3) Number of moles = 0.025 moles Therefore, 0.025 moles id required for the standard solution, nevertheless, I now need to convert this into grams by using the equation: Number of moles = Mass (g)

  1. Acids and Bases in the World - acid rain, chlorine in pools and cleaning ...

    The need for Chlorine in swimming pools 1. Chlorine is what is used to help keep a swimming pool clean, you could say that Chlorine is effectively a sanitiser. 2. When Chlorine is put into water, a reaction occurs forming hypchlorous acid and hydrochloric acid, how much of each depends on the water temperature and pH 3.

  2. Individual investigation - Reaction to be studied Rate of reaction between propanone and ...

    As I added the starch indicator to the solution, the colour changed from orange to dark blue and when I titrated with sodium thiosulfate, the colour starts to change from dark blue to light blue and finally to colourless (also black precipitate/residue)

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