This discussion is now closed.
Check out other Related discussions
- Catalyst: iodide and peroxodisulphate ions
- Why do I find Reaction of Halogens so hard
- A-Level Group 7 Chemistry help
- Organic chemistry help
- Redox Reactions
- chem questions help!
- A level physics question
- GCSE chemistry help!!
- enthalpy change of sol
- enthalpy change of sol more or less exo
- Bond breaking and intermolecular force A level
- Transition Metal Ions
- AQA A Level chemistry
- TOF Mass Spec
- Etha
- mass spectrometry and rearranging the kinetic energy equation
- chemistry a level periodicity the halogens
- Chemistry A-level OCR transition metals
- A level Chemistry help
- Do I need to know how to draw structures for carbohydrates? (AQA A Level Bio)
Kinetics of the reaction between Iodide and Persulphate ions?
Hi there! I'm new here and I was wondering if anyone can help me.
I am investigating the kinetics of the reaction of iodide and persulphate ions but I am really struggling to work out teh concentrations and volumes I need. My teacher says that as I am changing the concentration of the KI, the Peroxidisulphate needs to be at least 10 times in excess. But how do I work this out. I ahev had one failed attempt so far when I worked out that I would need 4cm of 0.01M KI, 2cm 0f 0.1M s2O8 and 1 cm of 0.1M Thiosulphate and 1cm of Starch. This reaction did not work at all and still probably hasn't changed colour form clear to Blue.
So how can I work it out? Thanks in advance!
I am investigating the kinetics of the reaction of iodide and persulphate ions but I am really struggling to work out teh concentrations and volumes I need. My teacher says that as I am changing the concentration of the KI, the Peroxidisulphate needs to be at least 10 times in excess. But how do I work this out. I ahev had one failed attempt so far when I worked out that I would need 4cm of 0.01M KI, 2cm 0f 0.1M s2O8 and 1 cm of 0.1M Thiosulphate and 1cm of Starch. This reaction did not work at all and still probably hasn't changed colour form clear to Blue.
So how can I work it out? Thanks in advance!
Related discussions
- Catalyst: iodide and peroxodisulphate ions
- Why do I find Reaction of Halogens so hard
- A-Level Group 7 Chemistry help
- Organic chemistry help
- Redox Reactions
- chem questions help!
- A level physics question
- GCSE chemistry help!!
- enthalpy change of sol
- enthalpy change of sol more or less exo
- Bond breaking and intermolecular force A level
- Transition Metal Ions
- AQA A Level chemistry
- TOF Mass Spec
- Etha
- mass spectrometry and rearranging the kinetic energy equation
- chemistry a level periodicity the halogens
- Chemistry A-level OCR transition metals
- A level Chemistry help
- Do I need to know how to draw structures for carbohydrates? (AQA A Level Bio)
Latest
Last reply 1 minute ago
Contextual offer due to circumstances but only if make firm not insurance ?Last reply 1 minute ago
BAE systems degree apprenticeships September 2024Last reply 1 minute ago
Official: University of Manchester A106 2024 Entry ApplicantsMedical Schools
1308
Last reply 3 minutes ago
Official London School of Economics and Political Science 2024 Applicant ThreadLast reply 4 minutes ago
Edexcel GCSE Statistics Paper 2 Higher Tier (1ST0 2H) - 19th June 2023 [Exam Chat]Maths Exams
170
Last reply 5 minutes ago
National Probation ServiceLast reply 6 minutes ago
Rejected from 4/5 unis, don’t want to attend the one I have an offer forPosted 7 minutes ago
Apprenticeship needs a 4 in scienceLast reply 8 minutes ago
How to go from an A grade essay to an A* essay in edexcel politics?Trending
Last reply 5 days ago
Im confused about this chemistry question, why does it form these productsTrending
Last reply 5 days ago
Im confused about this chemistry question, why does it form these products
