Alkaline Water Facts

Archive for the ‘Oxidation Reduction Potential (ORP)’ Category

Wren asked:

help with any of these questions would be greatly appreciated!!

Use the following redox reaction to answer all of the questions:
Sn2+(aq)+Al(s)—>Sn(s)+Al3+(aq)
1. Balance the reaction
2. What is the reduction half in the above reaction?
3. What is the oxidation half?
4. Could the reaction be used to create a galvanic cell as written? If so, what reaction would occur at the anode? What reaction would occur at the cathode?
5. Determine the standard cell potential for the galvanic cell.

Incoming search terms:

• al3 3e
• 2Al 2Sn ----> 2Al3 3Sn2

matthank1 asked:

Has anyone used a Rosemount 2081 as an Oxidation-Reduction Potential transmitter?

I believe it is possible but don’t know how to wire it

William S asked:

If the reduction half-reaction Cd(2+)(aq) + e- ? Cd(s) has to be multiplied by 2 to balance the electrons before you add it to an oxidation half reaction, what is the electrical potential of this reduction half reaction?

I got an answer of -0.40 V. Am i correct?

ginnyweasleyrocks asked:

umm ok so here goes:
using standard electrode potentials, select a halogen that can be released from a halogen acid by dichromate (VI) solution (Cr2O7) 2- and one that cannot. give your reasons and write a balanced equation for the release of the halogen. 5 marks

have absolutely no idea. what are standard electrode potentials? and how do you decide which halogen acid ‘works’ and which doesnt? ANY ideas??

Incoming search terms:

• using standard electrode potentials select a halogen that can be released from a halogen acid by dichromate (vi) solution and one that can not

Frank_Kay asked:

The whole question is “If the standard reduction potential of a half-cell is positive, which redox reaction is spontaneous when paired with a hydrogen electrode?”

the choices are:
A. Oxidation
B. Reduction
C. Both a and b
D. neither a nor b

Incoming search terms:

• if the standard reduction potential of a half-cell is positive
• If the standard reduction potential of a half-cell is positive which redox reaction is spontaneous when paired with a hydrogen electrode?
• hald-cell concept unde oxidation and reduction