1. Determine the standard Gibbs energy of reaction, r G°, for the following reac
ID: 922085 • Letter: 1
Question
1. Determine the standard Gibbs energy of reaction, rG°, for the following reaction at 306.81 K given that the measured standard reduction potential, Ered°, was 0.199 V. This value was messured at 306.81 K.
Ni(s) + X+(aq) Ni2+(aq) + X(aq)
In this reaction X is a newly synthesised organic molecule that is of interest.
Give your answer in kJ/mol with one decimal place.
2. Given the following reduction potentials for the hypothetical element Me, find the potential for the reduction of Me4+ to Me3+.
Give your answer in Volts with two decimal places.
E°red Me3+(aq) + 3e- Me(s) 0.629 V Me4+(aq) + 4e- Me(s) -0.567 VExplanation / Answer
1. dGo = -nFEored
with,
n = 2
F = faraday constant
Eored = 0.199 V
we get,
dGo = -2 x 96485 x 1.99 = -384.01 kJ/mol
2. For Me4+ to Me3+
Eo = 4(-0.567) - (3(0.629)) = -4.155 V
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.