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Aims
Aims
To use a clock reaction to find the order of reaction with respect to iodide ions
To use a clock reaction to find the order of reaction with respect to iodide ions
To use a clock reaction to find the order of reaction with respect to peroxodisulfate ions
To use a clock reaction to find the order of reaction with respect to peroxodisulfate ions
Research and Report Findings
Research and Report Findings
Research and write up a method which explains how you will control significant variables (volumes/ concentrations/ temperatures/ stirring/ catalysts.) You will need to bring your method to your Core Practical 13b Laboratory session so that you can follow it.
1. Carry out & report suitable research into the techniques you could use. Include neat pencil drawn diagrams.
2. Updated the provided practical method by making improvements based on your research - so that the technique described will provide suitably controls variables and provides the best quantitative analysis to achieve accurate results.
Things to consider CPAC 2c
Things to consider CPAC 2c
CPAC 2c – Identifies and controls significant quantitative variables where applicable, and plans approaches to take account of variables that cannot readily be controlled.
· Identify the significant control variables (volumes/concentrations/temperatures/stirring/catalysts…)
· Plan how to control these variables (burettes/same solutions/waterbaths @ RT/no stirring/clean eqpt…
· Two or more students time reaction (to result in average time to end point calculation)
Things to consider CPAC 5a
Things to consider CPAC 5a
CPAC 5a - uses appropriate software and/or tools to process data, carry out research and report findings
· Carries out suitable research and writes up in own words citing relevant information, facts and figures within the text as necessary.
· Explain how your improvements provide suitably controls variables and provides the best quantitative analysis to achieve accurate results.
Things to consider CPAC 5b
Things to consider CPAC 5b
CPAC 5b – Sources of information are cited demonstrating that research has taken place, supporting planning and conclusions
· Clearly identifies any material that is a direct quote as such.
· Uses research to explain & support any alterations made
· Compiles a bibliography of texts from which material has been sourced in such a way that the reader may retrieve the information easily.
Required Resources
Required Resources
Core Parctical 13b - Student Sheet.docxCPAC core practical 13b.docxEDX_Chem_Y2_Practical_skills_sheet_8.docxResearching & refs_Practical_skills_sheet_3.docxConsult CLEAPSS Hazcards® 95A,95B, 47B Perform a risk assessment using up-to-date information before this practical is carried out
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