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Redox Reaction in a Basic Solution

Posted: Sat Mar 14, 2020 3:04 pm
by Philip
SeO4 2- (aq) + Au (s) = Au 3+ (aq) + SeO3 2- (aq)

I was confused with the reduction half-reaction
I thought it would be 2e- + SeO4 2- + H+ = SeO3 2- + OH-

Im assuming Im wrong since I put H+ was I supposed to put H2O instead?

Re: Redox Reaction in a Basic Solution

Posted: Sat Mar 14, 2020 3:10 pm
by Goyama_2A
yes, for redox reactions in basic solution, you are supposed to add H2O to the side of the reaction that needs more hydrogens and then balance accordingly by adding an equal number of moles of OH- to the other side.

Re: Redox Reaction in a Basic Solution

Posted: Sat Mar 14, 2020 3:12 pm
by Venus_Hagan 2L
In a basic solution, there will be no H+ ions. You can only add either water or OH-.

Re: Redox Reaction in a Basic Solution

Posted: Sat Mar 14, 2020 3:27 pm
by ValerieChavarin 4F
for basic solutions, you balance out the oxygens with H2O and then use OH^- to balance the hydrogens