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A level chem help pleassseee!!!!
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Guys, does anyone know how to answer this?
Last edited by anoynmous1; 1 month ago
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(Original post by iceberg5)
Any standard electrode potential values given??
Any standard electrode potential values given??
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#4
(Original post by anoynmous1)
Yesss. This table was given too. Sorry for not attaching it earlier.
Yesss. This table was given too. Sorry for not attaching it earlier.
Manganate equilibria are a personal fave with the colour changes (transition metal chem links in too!), and I think exam boards usually quite like them as well... Briggs-Rauscher is fun to watch if you fancy colour changes too
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#5
Believe you’ll be using system 1 and 4 the backward rule shows that Reaction 1 happens in reverse ( Due to the more negative electrode potential) so you’d be producing CO2 gas for the observation. Not sure what you need to state about the equilibrium.
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(Original post by iceberg5)
Ah, that should help! Maybe an equation would help structure and direct your answer. Considering the potential values and OIL RIG, you should be able to formulate one (don't forget to cancel species once your electrons are balanced). Also, the question mentions a gas. How might this help you in answering? Do you need a labelled diagram? How many marks is the question worth? <-- These are the sorts of qus you should be asking yourself as you go along.
Manganate equilibria are a personal fave with the colour changes (transition metal chem links in too!), and I think exam boards usually quite like them as well... Briggs-Rauscher is fun to watch if you fancy colour changes too
Ah, that should help! Maybe an equation would help structure and direct your answer. Considering the potential values and OIL RIG, you should be able to formulate one (don't forget to cancel species once your electrons are balanced). Also, the question mentions a gas. How might this help you in answering? Do you need a labelled diagram? How many marks is the question worth? <-- These are the sorts of qus you should be asking yourself as you go along.
Manganate equilibria are a personal fave with the colour changes (transition metal chem links in too!), and I think exam boards usually quite like them as well... Briggs-Rauscher is fun to watch if you fancy colour changes too
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(Original post by TheRealSamB)
What exam board and paper BTW?
What exam board and paper BTW?
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