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

Chemistry Lab

Extracts from this document...


Physical & Chemical Porperties of two Metals ( Mg & Cu) Physical and Chemical Properties of two Metals (Mg & Cu) " Design Design Purpose The purpose of this lab is to examine the physical and chemical properties of Magnesium and Copper. Definitions: Chemical change: A chemical change is a kind of change in which a specific type of matter is converted to a new one. Physical change: Physical changes are those in which a change in the form, but not the composition of matter occurs. Physical property: Physical properties can be observed or measured without changing the composition of matter, they are generally used to observe and describe matter. Chemical property: Chemical properties can not be determined unless a substance undergoes a change in its composition. If you answer the question "Can I get the original substance back?" with no, then you are observing chemical properties. Physical and Chemical Properties of two Metals (Mg & Cu) " Data Collection Data Collection Observations for Magnesium: Process Observations a) ...read more.


Attempt to bend a piece of copper wire. Does not break easily c) Obtain two 3 cm pieces of copper wire. Clean the surface of each with a piece of steel wool. Bronze in color, shiny and very smooth d) Place one of the pieces of copper wire from part c) into a test tube containing 3 mL of water. Add two drops of phenolphthalein solution and shake for 30 seconds. Liquid turned cloudy/white e) Using crucible tongs, hold the other piece of copper wire in a burner flame to ignite the copper. Remove the burning copper from the flame and allow it to continue to burn. Save the ignition for part f) Got warm, color of liquid turned grey, copper wire bends easily f) Place the ignition product from part e) into a test tube containing 3 mL of water. Add 2 drops of Phenolphtalein and shake for 30 seconds. No changes observed Add a 1 cm piece of copper wire to a test tube containing 1 mL of 2.0 mol/L HCL and observe for 30 seconds. ...read more.


Evaluation This experiment showed very well how different copper and magnesium react by doing several similar experiments with each of them, but I think there is a lot of room for improvement because I am quite sure that there are either changes or specific properties occuring in parts G to I with the copper. The fact that no reaction took place might have been due to not enough liquid for those experiments, it might have been helpful to either add more or do several trails with each one having a different value of liquid in it. In general it is always better to have numerous trails, this would give us better evidence about changes which might not have been regular, but occured due to unpreciseness when doing the experiments. It might have also been interesting to measure the temperature of the boiling liquid, whether or not there is a difference between the reaction with copper and magnesium or not. We only had about 40 minutes to complete our entire experiment, which was, in my oppinion, not enough time to complete all steps properly with a high preciseness, more time would have been helpful, too. ...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. Aim To investigate the chemical properties of alcohol

    carbon has only hydrogen attached to it thus the reaction occurs by only one step. Similarly, if propan-2-ol were used instead of ethanol then the final product would have again been propanone because in propan-2-ol is a secondary alcohol - where one hydrogen is attached to the carbonyl carbon.

  2. IB chemistry revision notes

    The better down, the better the reducing agent. Use of Standard Electrode Potentials * Electrode potentials are a measure of how strong oxidising or reducing an agent is. They predict whether a redox reaction is energetically favourable. The hydrogen half-cell was used as the base for all the S.E.P.s E?

  1. Reactivity series for common metals experiment.

    Copper Sulphate(Cu SO4) with: � Copper: No texture/surface/color change (No Reaction) � Iron: A coat of copper appear on the iron and the solution turns pale green. (Reaction) � Magnesium:Turns black on its surface (Reaction) � Zinc: No texture/surface/color change (No Reaction) � Lead: No texture/surface/color change (No Reaction) I.

  2. flame test lab

    excited by heating , they jump to higher energy levels As the electrons go back down, and leave the excited state, energy is re-emitted in the form of visible light of different colours.The emission spectrum can be used to determine the composition of a material, since it is different for each element of the periodic table.

  1. Effect of Current on The Quantity of Products in Copper Purification Through Electrolysis

    Il est tr�s difficile de critiquer une proc�dure lorsqu'il n'y a pas de valeurs th�oriques ou pourcentages d'erreurs mais je crois que les limites les plus importantes des proc�dures ont �t� identifi�es et �labor�es. c) Am�liorations de la recherche Les points limites des proc�dures sont tous corrigeables et il y

  2. IB Chemistry Lab Design - compare the effect of temperature on the concentrations of ...

    Thus, if the volume of air present in the system changes, the results will also change invariably. To prevent this, the amount of head space present in the system must be kept constant. This can be done by placing a lid on top of the beaker in which the acid solution is heated.

  1. Electrolysis of copper sulphate

    extraneous variables) and often due to human mistakes resulting from the experimenter's inability to perform a measurement in exactly the setting to obtain the exact the same result. A major error that occurred in this experiment is due to the way the cathodes were dried after being removed from the copper sulphate solution.

  2. To determine the standard enthalpy of formation of Magnesium Oxide using Hess Law.

    Another assumption that has led to the underestimation of the final value of ?HMgO is the assumption that the solution had the same specific heat capacity of water. Clearly, the solution contained Magnesium metal (in part X) or MgO (in part Y)

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