SIT (S I T) theory estimates this quantity in solutions with high electrolyte concentrations. For 10 points each:
[10m] Name this quantity symbolized gamma, which represents the deviation from ideality in a mixture.
ANSWER: activity coefficient [reject “activity”] (SIT stands for specific ion interaction.)
[10h] Two answers required. These two scientists co-name a theory that predicts activity coefficients for ions in dilute solutions, which derives from the Poisson-Boltzmann equation. The activity coefficient is proportional to the square root of the ionic strength in these two scientists’ “limiting law.”
ANSWER: Peter Debye AND Erich Hückel [prompt on partial answer; accept Debye–Huckel theory or Debye–Huckel equation or Debye–Huckel limiting law]
[10e] This other scientist first proposed the alternative SIT theory. Acids are classified as proton donors in a different theory that this scientist developed with Thomas Martin Lowry.
ANSWER: Johannes Nicolaus Brønsted [accept Brønsted–Guggenheim–Scatchard or Brønsted–Lowry theory]
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