Oxidizing Power - Test 2

Moderators: Chem_Mod, Chem_Admin

Posts: 62
Joined: Fri Sep 28, 2018 12:23 am

Oxidizing Power - Test 2

Postby skyeblee2F » Fri Mar 15, 2019 9:24 pm

The question asked to rank Pt, Pb, and Cu in order of increasing power going from their neutral to second oxidation state. I assumed this meant we had to switch the signs of each Eº, considering all of their reactions were listed backward. And since reducing power increases with a more negative Eº, I got the order Pb(+0.13 V) < Cu(-0.34 V) < Pt(-1.2 V). What did I do wrong?

Jessica Castro 2H
Posts: 60
Joined: Fri Sep 28, 2018 12:29 am

Re: Oxidizing Power - Test 2

Postby Jessica Castro 2H » Fri Mar 15, 2019 9:51 pm

Since the question was asking for reducing power and the standard potentials for the reduction reactions were given, you did not need to flip the signs.

Posts: 30
Joined: Fri Sep 28, 2018 12:21 am

Re: Oxidizing Power - Test 2

Postby riddhiduggal » Fri Mar 15, 2019 10:59 pm

You don't flip the signs.

Return to “Appications of the Nernst Equation (e.g., Concentration Cells, Non-Standard Cell Potentials, Calculating Equilibrium Constants and pH)”

Who is online

Users browsing this forum: No registered users and 2 guests