[llunknownll]

When measured against a standard hydrogen electrode, a half-reaction produces a cell potential of +0.993 V

What will be the cell potential measured versus
a) The SCE reference electrode?
b) The Ag/AgCl reference electrode?
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My answers:

a) 0.993v+0.241v=1.234 v

b)0.993v+0.197v= 1.19 v

Am I correct?

Thanks in advance!

[FreeTheBee]

It is easier to see if you write down the different potentials on a potential scale, like in a timeline. Where are the NHE, SCE, Ag/ACl and your couple?