Gcse chemistry limestone chips coursework

To do this I would make sure that: Using white paper helped the marking to stand out. Explain why best data at the start. I wrote down my results and then moved on to the next concentration of sodium thiosulphate. The higher the concentration of hydrochloric acid, the faster the reaction will take place because ….

Revised GCSE Chemistry and Physics

I also made sure that any clothing or long jewellery was clear and out of our way as clothing can also get caught.

When you have decided on the method, give a detailed description of how you might carry it out.

Chemistry (Single Science)

Have you got enough results, do they seem ok. I did not swirl these together because I wanted to see the rate of reaction without any intervention.

If you are confident and chosen the VARIABLE you want to investigate you should try to make a prediction and maybe justify it with some theory if you can. If you have decided, for example, to investigate the effect of acid concentration on the speed of a reaction, then everything else should be kept constant for a fair test, and this should be obvious in your plan for the reasons discussed above.

The simplest solution here, is to make sure all the chemicals have been standing in the laboratory prior to the lesson. Fine powders have a large surface area which greatly increases the reaction rate causing an explosion.

Background Research Chemical reactions are to do with changing the materials that form the base of your experiment. It is this increased chance of a 'successful' or 'fruitful' higher energy collision leading to product formation, that is the major factor, and this effect increases more than the increased frequency of particle collision, for a similar rise in temperature.

Chemistry (Single Science)

Briefly explain how the method can be used to measure the speed - the results of the first few minutes is usually the most crucial - you can discuss briefly other methods, but perhaps better in evaluation as a means of further evidence. If more experiments are conducted at another the time, the temperature must again be checked and recorded.

My data was precise because most of the points on my graphs are close to the line and are all close by each other. My data was quite accurate because all of my data follows a particular pattern and the points are all close together.

If you have decided, for example, to investigate the effect of acid concentration on the speed of a reaction, then everything else should be kept constant for a fair test, and this should be obvious in your plan for the reasons discussed above.

Any spark from friction is enough to initiate the reaction. My negative reaction was partly due to. The descriptions of experiments to do with For every one M increase, the rate for reaction increases by 2.

Marble Chips, Laboratory Grade, g plato republic justice essay …. If you haven't already chosen the VARIABLE, do so now, and make a prediction and justify it with some theory which you may have previously described and should refer to.

This shows that there is a difference in the data which proves accuracy. For sources and references you should research 'rates of reaction' for theory, experimental methods etc. If more experiments are conducted at another the time, the temperature must again be checked and recorded.

It is best, if possible, to have all the average results points plotted on the same graph for easy comparison - take care because this may involve 4 or 5 lines for 4 or 5 different acid concentrations Make sure you use a clear KEY for the different line points and a clear title for the graph AND clearly label the axis including the units or whatever.

Sodium thiosulphate is a colourless, crystal like compound and is used for dyes and is also a salt. We are basically talking about plotting the initial rate versus e. There is also the Arrhenius Equation relating rate of reaction and temperature - but this involves advanced level mathematics.

The results are initially processed into graphical form 'graphing' for several reasons for both the analysis and evaluating the experimental You must give details of how long you might time the experiment as well as the time interval between experimental readings REMEMBER you can change your 'recipe' or way of doing the experiment.

Obtaining evidence - observations, measurements, in other words the results. Reactions that happen quickly have a high rate of reaction. The factors to discuss might be: amount of limestone? temperature of reactants? acid concentration?

Chemistry marble chips coursework

volume of acid? size of limestone pieces?(relate to surface area? stirring of the reacting mixture size of reaction vessel volume of.

Anjelina Qureshi Mrs Gravell Rates of Reaction Coursework Chemistry Year 11 Rates of reaction Introduction A chemical reaction occurs when things change from reactants into products.

GCSE Chemistry - Sodium Thiosulphate Coursework We must produce a piece of coursework investigating the rates of reaction, and the effect different changes have on them. The rate of reaction is the rate of loss of a reactant or the rate of formation of a product during a chemical reaction.

GCSE Science/Rates of reaction coursework

May 17,  · Mix - GCSE Chemistry Song - Limestone YouTube; The Periodic Table Song ( UPDATE!) The Limestone Cycle - Chemistry - Science - Get That C In your GCSE and IGCSE - Duration: About GCSE: The General Certificate of Secondary Education (GCSE) is an academically rigorous, internationally recognized qualification (by Commonwealth countries with education systems similar or identical to the UK education system) awarded in a specified subject, generally taken in a number of subjects by pupils in secondary education in England and Wales over two years (three years in.

[tags: GCSE Chemistry Coursework Investigation] Free Essays words ( pages) The Rate of Reaction Between Hydrochloric Acid and Marble Chips Essay.

Gcse chemistry limestone chips coursework
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BBC Bitesize - GCSE Chemistry - Chemical reactions and tests