What is the standard reduction potential of hg(aq) to e, v 2 hg(aq)2e -> hg2 (a) 0.90 +0.80 half reaction hg22+(aq) + 2e, 2 hg(1) (a) +1.70 v (c) +0.10 v (b) +0.85 v (d) -0.10 v 41. the lead-acid storage battery consists of the following two half-cells: pb02(s)+4 h(aq)+so4(aq) +2e - pbso4(s)+2 h o0) which of the following concentrations decrease as the pb(s) + so4 (aq) -» pbso4(s) +2 e battery is discharged? i. [h (a) i only (c) both i and ii ii. [pb2 (b) ii only (d) neither i nor ii

Steam reforming of methane ( ch4) produces "synthesis gas," a mixture of carbon monoxide gas and hydrogen gas, which is the starting point for many important industrial chemical syntheses. an industrial chemist studying this reaction fills a 1.5 l flask with 3.5 atm of methane gas and 1.3 atm of water vapor at 43.0°c. he then raises the temperature, and when the mixture has come to equilibrium measures the partial pressure of carbon monoxide gas to be 1 .0 atm. calculate the pressure equilibrium constant for the steam reforming of methane at the final temperature of the mixture. round your answer to 2 significant digits.