Redox Reaction in a Basic Solution

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Philip
Posts: 100
Joined: Sat Sep 07, 2019 12:16 am

Redox Reaction in a Basic Solution

Postby Philip » Sat Mar 14, 2020 3:04 pm

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?

Goyama_2A
Posts: 107
Joined: Sat Aug 24, 2019 12:17 am

Re: Redox Reaction in a Basic Solution

Postby Goyama_2A » Sat Mar 14, 2020 3:10 pm

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.

Venus_Hagan 2L
Posts: 104
Joined: Fri Aug 02, 2019 12:16 am

Re: Redox Reaction in a Basic Solution

Postby Venus_Hagan 2L » Sat Mar 14, 2020 3:12 pm

In a basic solution, there will be no H+ ions. You can only add either water or OH-.

ValerieChavarin 4F
Posts: 99
Joined: Wed Sep 18, 2019 12:18 am

Re: Redox Reaction in a Basic Solution

Postby ValerieChavarin 4F » Sat Mar 14, 2020 3:27 pm

for basic solutions, you balance out the oxygens with H2O and then use OH^- to balance the hydrogens


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