When making a buffer solution, a chemist would ideally choose an acid with a pKa closest to what other variable?

257 grams h2o i think

Idon't know hope someone you

Answerδh > 0explanationc₆h₆  (s)  → c₆h₆ (l)if you are changing it from a solid to a liquid, you are pretty much melting the solid. this requires heat energy. therefore, the reaction is endothermic (takes in energy); the system enthalpy increases as the reaction proceeds: δh > 0.