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junior college 2 | H2 Maths
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Q8&9
For q9 i dont get how to go abt choosing the eqns. Shdnt it be the eqn with H2O involved?
Date Posted: 6 years ago
Views: 487
For Q9, metal dissolve due to oxidation. So whatever happened in the solution must be reduction.
Electrons are lazy like us. It tends to do the easier stuffs first. So the “easier reductions” are those with higher Eo values.
Electrons are lazy like us. It tends to do the easier stuffs first. So the “easier reductions” are those with higher Eo values.
So we choose the eqn w H+ on the LHS of the equation right? Since metal is oxidised
So shdnt the eqn be O2 +4H+ + 4e > 2h2O (+1.23V)?
So shdnt the eqn be O2 +4H+ + 4e > 2h2O (+1.23V)?
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Hope this helps. :)
Date Posted:
6 years ago
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