• 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. 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

  2. IB chemistry revision notes

    electron from each atom of a mole of atoms in the gas state, to form one mole of cations in the gas phase, under s.t.p * * is positive. Across a Period * In every period the noble gas has the highest value.

  1. IA - Lab Report. Aim to prepare a sample of p-nitro acetanilide from the ...

    o In the same measuring flask, measure 8 cm3 of sulfuric acid and using a dropper add this to the conical flask containing acetic acid and acetanilide.

  2. pKa. When constant successive portions of Sodium Hydroxide are added to Acetic Acid; how ...

    Here the volume of base added is half that required to reach the equivalence point. We can determine the pKa or Ka of an acid by finding the pH when half way to the endpoint of the titration since pKa = -log Ka (refer to figure 1).

  1. Change of Potential Difference in Voltaic Cells Lab Report

    To add the remaining water use the water wash bottle. Preparation of concentrated potassium chloride salt bridge (KCl) 1. Obtain a filter paper (Salt Bridge) and fully immerse it in the potassium chloride solution of (1.0 M) concentration. ** This is an alternate method that can be used if the

  2. titration experiment report

    Observation: Base- pink Acid- transparent Neutral- transparent The color of solution, pink, got lighter and lighter as we added the acid. Part 1 and 2 both gave a sudden change, so we carried our experiment very carefully to pour acid drop by drop.

  1. Chem lab report shampoo experiment

    After preforming the previous test record the amount of foam in each minute for a total of 4 minutes. Then find the amount of foam reduced in 4 minutes. Information: In a good shampoo, the foam retention should remain stable for at least five minutes.

  2. Chemistry Titration Acid Base Lab

    Approximately 9.2 is the pH of the equivalence point as seen in the graph. Conclusion This lab required one to determine the different volumes of sodium hydroxide base required to reach the end point of a titration with acetic acid as the analyte when using different indicators.

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