Joker2021
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https://pmt.physicsandmathstutor.com...s%201%20QP.pdf

https://pmt.physicsandmathstutor.com...s%201%20MS.pdf

i dont understand 1c can someone explain
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Davies Chemistry
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See picture below
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If you are not sure about how to predict the direction of redox reactions from electrode potentials, see this video: https://www.youtube.com/watch?v=8zXo...t6xcNt&index=2
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Joker2021
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(Original post by Davies Chemistry)
See picture below
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If you are not sure about how to predict the direction of redox reactions from electrode potentials, see this video: https://www.youtube.com/watch?v=8zXo...t6xcNt&index=2
Thanks you have made it more clear now but how does the second mark relate about the electrode potential for sulphate ion is bigger than Br-
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Davies Chemistry
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(Original post by Joker2021)
Thanks you have made it more clear now but how does the second mark relate about the electrode potential for sulphate ion is bigger than Br-
The mark scheme says that the elctrode potential for sulphate ions is smaller (not bigger) i.e. less positive, so it wont be the best one at taking in electrons (going forward). The Br2/Br- electrode is more positive so that is the best at taking electrons in (going forward)
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Joker2021
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(Original post by Davies Chemistry)
The mark scheme says that the elctrode potential for sulphate ions is smaller (not bigger) i.e. less positive, so it wont be the best one at taking in electrons (going forward). The Br2/Br- electrode is more positive so that is the best at taking electrons in (going forward)
Thanks. can i have some help with 3e
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Davies Chemistry
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(Original post by Joker2021)
Thanks. can i have some help with 3e
Sure:
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Joker2021
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(Original post by Davies Chemistry)
Sure:
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you literally better than my chem teacher . can i have some help with 4c i dont get the second marj
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Davies Chemistry
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Thanks. I'm glad I can help
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