ms how did you come to know about the oxidation state being positive 4 in question 18c? i found out the ratios but idk what to do at that point, or what the general steps are after this.
@@asmatumi294 In the half equation, 1 mole of MnO4- accepts 5 moles of electrons, and since there are 0.001 moles of MnO4- , there should be a transfer of 0.005 moles of electrons. We also have 0.005 moles of X, so the ratio of electron transfer to moles of X is 1:1. Therefore, each atom of X must have gained 1 electron (since 0.005 moles of X are involved and 0.005 moles of X are transferred). The original oxidation state of X is +5 and one electron is gained to reduce it, so the final oxidation state is (5-1) = 4 so +4 oxidation state.
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His miss for the 19f) can we find percentage by volume instead of mass ?
ms how did you come to know about the oxidation state being positive 4 in question 18c? i found out the ratios but idk what to do at that point, or what the general steps are after this.
Hey, have u figured it out ? cuz im stuck in that part too😭
@@asmatumi294 In the half equation, 1 mole of MnO4- accepts 5 moles of electrons, and since there are 0.001 moles of MnO4- , there should be a transfer of 0.005 moles of electrons.
We also have 0.005 moles of X, so the ratio of electron transfer to moles of X is 1:1.
Therefore, each atom of X must have gained 1 electron (since 0.005 moles of X are involved and 0.005 moles of X are transferred).
The original oxidation state of X is +5 and one electron is gained to reduce it, so the final oxidation state is (5-1) = 4 so +4 oxidation state.
@@asmatumi294 Hope that helps :)
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@@AliAbubakar-zg3lx tysmmm!!
could you make edexcel igcse biology topic wise videos just like you did for chemistry
th-cam.com/video/qCSG0SucUZs/w-d-xo.html
Pls upload jan 2024 u5 as well. These videos have helped me so much n I'm really thankful for ur hardwork
they cant do that, its against the pearson edexcel rules
Hi! Could you please make unit1 January 2024 past paper please
they cant do that, its against the pearson edexcel rules
hi could you please do paper 1CR June 2023 - IGCSE Chemistry Edexcel..