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

Investigation (reaction of transition metal ions)

Extracts from this document...


Investigation (reaction of transition metal ions) Aim- To find how hexaqua ions reacts with various substances (other ions) Equipment * Goggles * Apron * 5 test tubes * Beaker * Pipette * Hydrochloric acid * Copper hexaqua * Cobalt hexaqua * Chromium hexaqua * Ammonia * Sodium Hydroxide * sodium carbonate Method- * We collected our five boiling tubes and set them up in the test tube rack * We collected the ion we were going to use (the cobalt) and measured about 5cm of it and poured it in each of the boiling tubes * We put a few drops of HCL in each of the boiling tubes containing the cobalt, we then had to swirl the solution and observe what was happening, then add a few more drops to excess it ...read more.


Ph1 Colour change to slightly green Light blue Slightly warm Cloudy Light blue, foamy state, and slightly warm Light blue, foamy, produces a fizzy sound, goes a bit warm Chromium (green) Ph1 Greyish Dark green, grey, not warm. Went into a solid state Colour changes to Dark green Dark green Not warm Risk assessment Chromium hexaqua can be toxic, medium risks; can cause problems in the body such as breathing or lungs problems if inhaled too much. Hexaqua ions are quite acidic because of their pH, 3+ ions are more acidic than 2+ ions. Exposure to cobalt hexaqua during long period of time can cause health risks such as damages to the lung Hydrochloric acid is a very corrosive substance and therefore can seriously damage the eyes and skin. ...read more.


Conclusion According to my results, most of the ions reacted with the other chemicals (HCL, sodium Hydroxide, the sodium carbonate, the pH and the ammonia). We can see from my table the different colour changes the ions go through with every chemicals and we can also the texture some of them obtain. For example in the presence of ammonia, the chromium went from liquid to a solid state. Evaluation I am satisfied with the way the investigation went and the results I obtained from it. However there are some changes that I could make to it if I was to do it again. I was to repeat that investigation, I would make sure I measure out the right amount of ions and chemicals I need to carry out my investigation as the mount of chemical can make a difference to the outcome of the investigation. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Physical 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 AS and A Level Physical Chemistry essays

  1. Investigating the rate of reaction between peroxydisulphate(VI) ions and iodide ions

    = order of reaction with respect to reactant A m = order of reaction with respect to reactant B The overall order of reaction is calculated by adding together the order of reaction for each reactant. In the case of the equation above, the overall order of reaction would be expressed as m + n.

  2. Investigating the Rate of the Reaction between Bromide and Bromate Ions in Acid Solution

    Reactions involving solids happen on the surface of the solid, so increasing the surface area of a solid causes more area to be available for collisions to take place, leading to an increase in the rate of the reaction. In certain substances, radiation causes particles to move up vibrational energy

  1. Investigating how concentration affects rate of reaction

    Rinse mouth. Do not induce vomiting. Refer for medical attention. Spillage n/a n/a Do not absorb in saw-dust or other combustible absorbents. Personal protection: complete protective clothing including self-contained breathing apparatus. Do not let this chemical enter the environment. Storage n/a Separated from combustible and reducing substances, strong oxidants, strong bases, food and feedstuffs, incompatible materials.

  2. Decomposition of Copper Carbonate

    equation is "stoichiometric", meaning that exactly one mole of copper carbonate decomposes to exactly one mole of copper oxide and exactly one mole of carbon dioxide. So: CuCO3 (s) CuO (s) + CO2 (g) 1 mol 1 mol 1 mol And because 1 mole of any gas occupies 24dm� or 24000cm�: CuCO3 (s)

  1. Neutralization investigation

    According to Chemistry A-Level by Ted Philips: ''An alkali is a substance which dissolves in water to form hydroxide ions, as it's only negative ion'', and ''An acid is a substance which dissolves in water to form hydrogen ions, as it's only positive ion''.

  2. Individual investigation - Reaction to be studied Rate of reaction between propanone and ...

    Gradient= Determining the order of the reaction: One of the ways of finding out the order of the reaction is to draw the graph of rate against concentration or concentration against time. For rate against concentration graph: > Zero order: Rate must be constant with respect to the concentration of

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