Calculate δso for the combustion of 1 mole of benzene:
2c6h6(l) + 15 o2(g) → 12co2(g) + 6 h2o (g)
using the following data:
substance c6h6(g) o2(g) co2(g) h2o (g).
δso (j/k. mol) 172.8 205 213.7 188.7
a) -31.2 j/k
b) -138 j/k
c) 138 j/k
d) 276 j/k
e) - 276 j/k

10-14. (a) when 100.0 ml of weak acid ha were titrated with 0.093 81 m naoh, 27.63 ml were required to reach the equivalence point. find the molarity of ha. (b) what is the formal concentration of a- at the equivalence point? (c) the ph at the equivalence point was 10.99. find pk. for ha. (d) what was the ph when only 19.47 ml of naoh had been added?

What is the polyatamic ion of borate

How do temperature and salinity affect deepwater currents? as temperatures and salinity levels of water increase, the water rises to the surface where it creates currents as it moves to colder regions. they create changes in wind direction, moving denser water in the same direction as the wind and causing the deepwater circulation patterns found in the ocean. they equalize the forces on undersea currents caused by the coriolis effect as they replace more dense water with less dense water. they create density differences that cause dense deepwater currents to flow toward the equator where they displace less dense, warmer water above them.