Consider an electrolytic cell at 298 k based on the following two half reactions hg2 2+ + 2e- æ 2 hg (l) 0.80 v fe3+ + e- æ fe 2+ 0.77 v under standard conditions. what will the potential of this cell be when the concentration of hg2 2+ has changed by 0.35 m? you can assume that the volumes of all solutions are exactly 1.0 l for this problem.

Neptune is the eighth planet from the sun. it was the first planet to get its existence predicted by  mathematical calculations  before it was actually seen through a telescope on sept. 23, 1846. irregularities in the orbit of  uranus  led french astronomer alexis bouvard to suggest that the gravitational pull from another celestial body might be responsible. german astronomer johann galle then relied on subsequent calculations to   spot neptune via telescope. previously, astronomer galileo galilei sketched the planet, but he mistook it for a star due to its slow motion. in accordance with all the other planets seen in the sky, this new world was given a name from greek and roman mythology — neptune, the roman god of the sea.