. Like any equilibrium constant, Kw, changes with temperature. (a) Given that autoionization is endothermic, how does Kw change with rising T? Explain with a reaction that includes heat as a reactant or product. (b) In many medical applications, the value of Kw at 37°C (body T) may be more appropriate than the value at 25°C, 1.0x10-14. The pH of pure at 37°C is 6.80. Calculate Kw, pOH and [OH-] at this T.

a

The answer is shown on the first uploaded image  

b

Explanation:

The explanation is shown on the second and third uploaded image

the old alchemists made significant contributions to science even though there starting premises were off a bit. their conclusions after failure would steer them into better directions for investigation. science is no more than close observation and the initial mistakes result in rethinking and retrying experiments.

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.