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

Investigating for Cations and Anions.

Extracts from this document...


Investigation 1.1A Investigating for Cations and Anions In this experiment I will investigate what cations and anions are present in various compounds. This will include carrying out a qualitative analysis, because I need to find out what type of cations and anions are there and not quantitative analysis, which includes finding out how much of each element there is. Safety Points: * Wear glasses * Wear gloves * Do not mix more than two solutions * Only mix the solutions listed by the teacher * Handle the chemicals with extreme care * Put the chemical solutions into a test-tube which is resting on a test-tube holder * Follow school lab safety procedures. Materials: * Various chemicals. * Test tubes. * Boiling tubes. * Pipettes. * Test tube holder. * Bench mat. Method * I first copied the chemical solutions listed. * I put on some gloves and safety glasses. * I got a test-tube holder and placed five test-tubes in it. Cations * I added the test solutions Copper Chloride to the test-tube. ...read more.


* A white precipitate appeared that indicated that there were Sulphate ions present. * I then recorded all of my results and repeated the entire experiment again to make sure everything was correctly done. * I then repeated the entire experiment again, with limewater as the solution added, to get a negative result. Solution Used Solution Added Result Testing For Cations/Anions Copper Chloride Sodium Hydroxide Positive Blue Precipitate Copper (CU ) Cations Copper Chloride Lime Water Negative Copper (CU ) Cations Iron Chloride Sodium Hydroxide Positive Brown precipitate Iron (Fe ) Cations Iron Chloride Lime Water Negative Iron (Fe ) Cations Sodium Hydrogen Carbonate Dilute Acid Positive Limewater turned cloudy/milky Carbonate (CO ) Anions Sodium Hydrogen Carbonate Lime Water Negative Carbonate (CO ) Anions Lithium Chloride Acidified Silver Nitrate Positive White precipitate Chloride (Cl ) Anions Lithium Chloride Lime Water Negative Chloride (Cl) Anions Copper Sulphate Barium Chloride Positive White precipitate Sulphate (SO ) Anions Copper Sulphate Lime Water Negative Sulphate (SO ) Anions Evaluation The problems I encountered while doing this experiment were:- * I didn't know what the difference was between cations and anions and I tested for the wrong things. ...read more.


This would greatly increase the accuracy and reliability of this technique. Vocational Implications There are similar techniques used in the industry for example: when you find a new substance which is unknown, so that means that you need to check what elements there are present. This method could be automated and done on the computer but when it comes down to putting the substance to the test it needs to be done by hand. You also need a variety of scales so you can check that the result is the same. For example: you can use more substance and add a little bit of solution, you can use a little bit of the substance and add a lot of solution or you can put the substance to the test by adding different types of solution. When doing these tests you need to use safety rules just like in any other lab, but because you are working with chemicals you need to make sure you got clear space to work on, that you wear goggles and a lab coat and that you do not spill any of these chemicals because you could have dangerous outcomes to it. Hamza Abib 10BY GNVQ Science - 1 - ...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. How much Iron (II) in 100 grams of Spinach Oleracea?

    present in 100 grams of Spinach. This is not the expected result of 4 mg's, which is what the many textbooks suggest the answer should be. Experiment B 5Fe2+ + 5C2O42- + 3MnO4 + 24H+ 5Fe3+ + 10CO2 + 3Mn2+ + 12H2O The equation above shows that 3 moles of Potassium Manganate (VII)

  2. test for anions present in various salts.

    a few drops of hydrochloric acid were then inserted in this new beaker 9. results were recorded 10. more hydrochloric acid was then inserted until the slat dissolved 11. distilled water was then inserted sand mixed well 12. a few drop were added of barium chloride solution and results were recorded 13.

  1. Investigating the Effects of Increasing Copper Sulphate Solution Concentrations on the Germination of Cress ...

    The concentration 0.06mg/l of copper sulphate, which was closest to the natural level, had the lowest standard deviation other than the 60mg/l of copper sulphate. This shows that in each batch almost the same number of seeds germinated, showing that this concentration was consistently right for seed germination.

  2. To find out the 5 solutions by testing out the cations and anions.

    * Silver nitrate (Ag NO3) * Lead (II) Nitrate (PbNO3 ) * Sodium hydroxide (NaOH) * Aluminium foil * Barium Nitrate (BaNO3) * Limewater * Solution 1 * Solution 2 * Solution 3 * Solution 4 * Solution 5 Safety: * Always wear goggles to provide protection for eyes.

  1. The action of amylase and pectinase in varying amounts when clarifying cloudy apple juice.

    anomalous results and so it would give me extremities not reflecting my true results. Hence for 0.9:0.1 the average would become 4.066666666� Amylase:Pectinase ratio Summary table of experiments 1 &2 0.9:0.1 2.9 0.8:0.2 2.8 0.7:0.3 2.725 0.6:0.4 2.6 0.5:0.5 2.7 0.4:0.6 2.7 0.3:0.7 2.725 0.2:0.8 2.75 0.1:0.9 2.9 Conclusion The

  2. AIMIdentify anions present in various salts by chemicals testing

    if it fizzes (gives off gas) ,record the result in a table and add more acid drops 1 by 1 until it no longer fizzes. * Add distilled water to 1cm depth. Mix well. * Put a few drops of barium chloride using a clean pipette.

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