I have calculated the gradient of my line to support my hypothesis and found that: Accept answers at your own risk. Planning - the theory and your experiment design. These reactions only happen if the reacting molecules collide properly. I think this because there is outliers in the 2M set of data and the error bars overlap between 1M and 2M on my error bar graph.
Link your decision to the error bars and the distance from the line of best fit. If I was using solids, I could investigate surface area and for gases I could investigate pressure In concentration I looked at five different concentration of HCl The volume of HCl stayed the same; also the volume of sodium thiosulphate stayed the same, the concentration of sodium thiosulphate stayed the same.
In the case of the sodium thiosulphate - acid reaction, you can leave the thermometer in the flask and take the temperature at the end, then use an average for the temperature of the reaction. Advertisements of any form. This needs to be really detailed for you to gain good marks for this section.
There are 2 outliers Improvements and further investigations: The independent variables in our experiment are the concentration of hydrochloric acid. Sodium thiosulphate is a colourless, crystal like compound and is used for dyes and is also a salt. Think about all the errors that could have occurred and link this back to the limitations of your method and apparatus.
If it helps, you can add diagrams or photographs of the alternative equipment. You must explain why you chose the range. Your teacher will have a good idea what to expect and you must be able to justify all your write-up.
The factors to discuss might be It may delete a post erroneously. Hope this all helps: Take their hypothesis and results and find, in detail, similarities and differences between your work.
The size of the error bars is quite small so I think I can say that my data is quite accurate except for the 2M result which is quite a long error bar. A BRAINSTORM on "Rates of Reaction" for chemistry coursework investigations-projects.
Ideas for coursework assignments or projects involving the rates or speed of chemical reactions and is a companion page to see also the DETAILED GCSE Revision Notes on the Factors Affecting the Rates of Chemicals which also has brief.
Home > GCSE > Chemistry > Rates of reaction Coursework Rates of reaction Coursework I did this last year as part of my chemistry GCSE and. Enthalpy 2|Page Anjelina Qureshi Mrs Gravell Rates of Reaction Coursework Chemistry Year 11 Enthalpy, in chemistry, is the heat content in a chemical reaction.
The enthalpy change is the amount of heat absorbed or released when a chemical reaction occurs at a constant pressure. Enthalpy 2|Page Anjelina Qureshi Mrs Gravell Rates of Reaction Coursework Chemistry Year 11 Enthalpy, in chemistry, is the heat content in a chemical reaction. The enthalpy change is the amount of heat absorbed or released when a chemical reaction occurs at a constant pressure.
Chemistry A and to the Guide for Controlled Assessment for GCSE Twenty First Century Science. Task setting is under high control. Tasks are therefore set by OCR. GCSE TWENTY FIRST CENTURY SCIENCE CANDIDATE STYLE ANSWERS SPECIMEN GCSE TWENTY FIRST CENTURY SCIENCE ADDITIONAL SCIENCE A A CHEMISTRY A A Practical Investigation Factors that affect the rate of reaction of calcium carbonate with acid CONTROLLED ASSESSMENT provides some secondary data to supplement that which.Ocr gcse chemistry coursework secondary data