Given the standard reduction potential for Au3+ in Table 19.1 and Au+(aq) + e- Au(s) E

Question:

Given the standard reduction potential for Au3+ in Table 19.1 and
Au+(aq) + e- → Au(s) E° 5 1.69 V
answer the following questions.
(a) Why does gold not tarnish in air?
(b) Will the following disproportionation occur spontaneously?
3Au+(aq) → Au3+(aq) + 2Au(s)
(c) Predict the reaction between gold and fluorine gas.