Question & Answer: Tacmillad. University of Colorado, ×1+ saplinglearning.com/ibiscms/mod/lbis/view.php?id-…..

Tacmillad. University of Colorado, ×1+ saplinglearning.com/ibiscms/mod/lbis/view.php?id-4018854 ing aty of Colorado, Boulder- CHEM 1133 Summeri7-PLATH Activities and Due Dstes HWT ⓘ 8/1/2017 11:00 PM 576/100。8/1/201705:04 PM CalculatorPericdic Table G3 Sapling Leaming Calculate the slandard froe energy change for the following reaction at 25 ‘c. Standard reduction potentials can be foun d here. Number kJ Tools x 10」

Expert Answer

from data table:

Eo(Ni2+/Ni(s)) = -0.25 V

Eo(Au3+/Au(s)) = 1.52 V

As per given reaction/cell notation,

cathode is (Au3+/Au(s))

anode is (Ni2+/Ni(s))

Eocell = Eocathode – Eoanode

= (1.52) – (-0.25)

= 1.77 V

number of electrons being transferred, n = 6

F = 96500 C

use:

ΔGo = -n*F*Eo

= -6*96500*1.77

= -1024830 J

= -1024.8 KJ

Answer: -1024.8 KJ

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