G11 SUPER GIO
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02
PRACTICE MISSIONdynamic equilibrium, pH, and reaction response

dynamic equilibrium, pH, and reaction response

NEW CASENEW EVIDENCE

Buffer calculation

A buffer has equal concentrations of HA and A-. Its pKa is 4.76. Henderson-Hasselbalch: pH=pKa+log([A-]/[HA]).

  1. The ratio is 1.
  2. log(1)=0.
  3. Small added acid is consumed mainly by A-.

What is the initial pH?

MODELEquilibrium Balance
PHYS
PROVEChoose with evidence
CLUE

Pause. Find what matters. Then make your move.