Determine the electrical work required to produce one mole of hydrogen in the electrolysis of liquid water at 298 k and 1 atm. the chemical reaction is-
h2o(l) = h2 (g) + 0.5 o2 (g)
data (at 298 k and 1 atm): delta h= 286 kj for this reaction, sh2o =70 j/k , sh2o= 131 j/k and so2= 205 j/k

neutrons are in the middle of the atom and the electrons, which are much smaller.

when [oh-] is 10-5  m, and [h3o+] is 10-9  m, the poh is 5 and ph is 9. again in both cases the sum of ph and poh is 14. however, the hydrogen ion concentration is not always going to be equal to exactly 1 x 10 raised to a negative number. for example, we skipped over the value of 2.0 x 10-7.

c (diamond),

sio2 (quartz)

here is table 2-2:

country

percent of eligible voters that voted

rank

united states

44.9%

138

canada

60.1%

107

costa rica

84.6%

14

hungary

66.9%

82

japan

57.0%

118

egypt

27.7%

159

south africa

85.5%

10

ans is no, the data set cannot be plotted as a single circle graph