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

Chemistry Lab report

Extracts from this document...

Introduction

Chemistry Lab report: * Aim: To determine the concentration of acetic acid (CH3COOH)/Vinegar in the given sample. * Hypothesis- The concentration will be determined by carrying out an experiment of titration of titrating the acetic acid with sodium hydroxide(NaOh) and getting the concentration by using the formula M1V1=M2V2 where m is the molarity and v is the volume. * Apparatus: The materials needed for the experiment a pipette for taking exactly 25 ml of sodium hydroxide to put into the conical flask. A burette is needed for the acetic acid for an exact amount of volume to take. ...read more.

Middle

And the drops of phenoptelin (indicator) used for the experiment. * Constant: The factors that were constant in the experiment are the volume of NaOH used for all the three readings and the concentration of the sodium hydroxide throughout the experiment. * Procedure of the experiment: 1. Put the burette in the burette stand and rinse the burette two or three times with distilled water so that the burette is clean for the investigation. 2. After it is rinsed, pour the acid into the burette and close the burette tightly, do it does not drip. 3. Use the pipette to put exactly 25 cm3 of Sodium Hydroxide into the conical flask and put in 2 to or 3 drops of phenoptelin indicator into the flask to make the color pink for the experiment. ...read more.

Conclusion

* The results that I obtained from the experiment: * Volume of 1st titer: 32.2 cm3, Volume of 2nd titer- 30cm3, Volume of 3rd titer- 31 cm 3. Average- 31.06 cm3. To obtain the concentration of the acetic acid, we use the formula M1V1=M2V2 so the concentration is 25�1= 31.06�X= 25�31.06=0.8 moles. * Conclusion- To conclude I got the concentration right in which is 0.8 moles/dm3 by using the procedure and the formula I mentioned above. * Evaluation: If I could do the experiment again, I would take much more accurate readings, I would rinse the materials used more so that i could get a much more accurate titrate reading. I would try to used different methods other than the one mentioned above to determine the volume of CH3COOH. ...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. IB Chemistry - Charles' Law Lab Report

    not 20?. - A) Effect of changing the pressure at constant temperature: From the Kinetic Molecular Theory, temperature (heat) is the kinetic energy in an atom. Therefore the more kinetic energy molecules have, the higher temperature is. If the kinetic energy is constant which mean the temperature is at constant, only volume can decrease or increase the level of pressure.

  2. acid base lab report

    -0.1M CH3COOH (aq) -0.1M Hcl (aq) -0.1M NH3 (aq) -Phenolphthalein indicator -Methyl-red indicator (1 (1 -electronic pH meter -hot plate/stirrer -50mL burette with stand -250mL beaker -100mL beaker -25mL volumetric pipette -pipette safety bulb -scoopula -magnetic stir bar -plastic wash bottle -500mL volumetric flask and stopper -plastic or glass funnel -safety goggles Followed the procedures listed

  1. Combustion of alcohols lab report

    gains heat, so there is a possibility that not all the heat would be transferred as the water heats up. Also, the clamp was metal, so some of the heat might have been transferred to the clamp and stand, and thus, lost during the experiment.

  2. IB chemistry revision notes

    * Electronegativity depends on 3 things: o Real nuclear charge, Z o Number of screening electrons (repulsion electrons) o Atomic Radius * If two elements have similar electronegativity, they bond covalently. If the difference is of 2ish or more, they will form ionic bonds.

  1. IB Chemistry Kinetics Exam Questions and Answers

    + 2 HCl (aq) --> CaCl2 + CO2(g) + H2O(l) a. increasing volume of HCl No. Increasing the volume will not change the overall concentration. If you add 100 cm3 of 1.0 mol dm-3, the rate will be same.

  2. IB Chemistry - Boyle's Law Lab Report

    3 26 �0.499 46,500 �3720 4 23 �0.499 46,900 �3750 5 20 �0.500 45,800 �3660 6 18 �0.500 45,700 �3660 Questions - According to the result of the experiment, the relationship between variables such as volume and pressure was inversely related.

  1. Indicator Lab Report - investigating acid-base reactions

    It is also possible that the whole graph is the buffer region, and more alkali was needed to reach the equivalence point. The x intercept on the graph is the initial pH of the solution. Conclusion and Evaluation Conclusion From this investigation, I can conclude that the pH at the

  2. Chem lab report shampoo experiment

    To ensure this used a dropper to add shampoo to a test tube. The observations should be as accurate as possible because it is difficult for one to identify the size of the bubble or how much ink is present in the foam.

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