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

The Polarity of a Compound. We also determined that Water (H2O), is the most polar of all our tested compounds. To explain why it`s polar is simple; it has it`s hydrogen bonds (which cause it to be very polar) and the fact that it is in a isosceles triang

Extracts from this document...

Introduction

The Polarity of a Compound Conclusion: To start, a non-polar molecule is simply when it is symmetrical (linear, cyclo,etc) in evry way and so, no matter the charge, the molecule can balance it`s charges out at he poles. A polar charge is merely the opposite, where it is unbalanced due to non symmetrical (triganol, etc) have a polar compound is to have a molecule that has an un-even charge therefore a more heavy attraction on one side of the molecule. We also determined that Water (H2O), is the most polar of all our tested compounds. To explain why it`s polar is simple; it has it`s hydrogen bonds (which cause it to be very polar) and the fact that it is in a isosceles triangle formation means that it is not symmetrical thus it is polar because of an uneven distribusuion of elctro-negativity of the hydrogen on either side. Now how to exlain that it is the most polar of the elements tested is because it has the largest uneven distribution of charge. The second most polar of our compounds was propone and thus had the second highest force of attraction towards positive charge of the rod. The only disquishing factor that ould affect this in propone is the fact that it contains double bonds. ...read more.

Middle

So, simply put; because maethanol is has smaller gravitational pull et ass than ethanol, it is thus displaced much easier by the polarity of the pole than the latter. Evaluation: To start, our group did most things correctly but merely in a different way. For example when our group measured the degree of deflection caused by the ostivily charged rod, we measured it close to the exit stream of the pepitte for each of the compounds instead of further down on the beaker. This was not nesserally incorrect procedure considering that we had used the same location of measurement for all tested compound, but, it did make it slightly harder for our group to judge what the precise degree of delectation was. This could be simply changed for the next test by recording our results from lower down the stream. One of the largest mistakes our group did though was that we did not retest our degree of deflection tests numerous times. We only would record the degrees once and then leave it alone. We had only one test and one result for each compound tested. Our method could have allowed some very false results to be recorded. To improve the accura cy of our results for next would be to retest each compound`s degree of deflection test 3 to 5 times in order to average it in the end. ...read more.

Conclusion

In regards to the charged ruler, here existed another flaw in the results. The biggest problem with the ruler is that there was no way to tell how charged the ruler was. To charge the ruler we would remove electrons by rubbing the ruler with a woolen cloth. The obvious problem was that we did not have a controlled time set to charge the stick. So when testing the polarity of set substances some tests were using a less polarized rod, which could have if it occurred greatly, changed the results. For next time our group should set a controlled time of 45 seconds so it's enough to fully polarize the rod but, also short enough so that we can repeat the tests for each substance without any time concerns. And yet another flaw occurs when we measured the deflection of the substances with a protractor, which was held at random distances away from the stream. Although it doesn't in any way affect our degree of deflection it did though, make it harder for me the degree reader to read the correct degrees. To add on to this problem we also did not hold our protractor straight and we often recorded the degrees of deflection with a shaky hand. What we could have done is lock the protractor in clamps and put it in a certain location throughout the entirety of the experiment. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our International Baccalaureate 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 International Baccalaureate Chemistry essays

  1. testing liquis for polarity

    Propanone 2 cm of deflection This molecule shows as very weak polarity because the only way of this molecule being polar is the double bonded Oxygen-Carbon bond. Oxygen is more electronegative than carbon which gives as a result a very weakly charged dipole.

  2. Atomic Structure Notes

    * There are other kinds of waves. We cannot see these waves, but we experience them every day. * These waves are called electromagnetic waves. * Electromagnetic waves have a wide range of wavelengths ranging from low energy radio waves to high energy ?-radiation.

  1. Aim: To investigate the chemical properties of the halogens and some of their ...

    it still forms compounds with many other elements. Although iodine is a non-metal, it displays some metallic properties. When dissolved in chloroform, carbon tetrachloride or carbon disulphide, Iodine yields purple colored solutions. It is barely soluble in water, giving a yellow solution. *The above information is from Chemical Cool (http://www.chemicool.com/)

  2. Factors Affecting Angle of Deflection

    which has a dipole. These dipoles will interact with the charged rod and depending on the dipole and charge on rod the liquid will be either pulled closer to the rod or pushed away. Hypothesis: The amount that the liquid is deflected will be directly proportional to the square of the distance between the

  1. liquids polarity

    As shown, the deflection is in big amount. Ethyl acetate 1-2.5 -Polar -Tetrahedral - This molecule shows a small deflection on the stream caused by the position of the Oxygen atoms. One O atom is placed on top of a C atom which will create a dipole moment and a

  2. Dissolved Oxygen in water

    An azide is present to prevent any nitrate ions from interfering with the test. On addition of acid, manganese oxide hydroxide oxidizes the iodide to iodine (Step 2). Since the amount of iodine generate is equivalent to the oxygen in the sample the concentration of iodine is calculated by titration

  1. The chemistry of atmospheric and water pollution.

    Many of these heat rays come back to the Earth's surface. This raises the temperature of the atmosphere.) In the stratosphere, CFCs (as well as halons) absorb heat rays emitted from the earth?s surface ? preventing them from being released into outer space.

  2. Testing the Suitability of Pool Water. The expected amount of chlorine which is ...

    of moles of Na2S2O3 = Concentration (mol dm-3) � Volume (dm3) = 0.01 mol/dm3 � [0.00315 � 0.0001] dm3 = 0.0000315 � 0.000001 mole Chemical Equations: * 2KI (s) + Cl2 (aq) ==> 2KCl + I2(aq) * 2Na2S2O3 (aq) + I2 (aq)

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