A buffer whose conjugate acid has at will be used at

CHEMISTRY · Subjective · A Level · Chemistry · Acids and bases · Acids and bases

Problem

A buffer whose conjugate acid has pKa=7.20pK_a = 7.20 at 25∘C25^{\circ}\text{C} will be used at 37∘C37^{\circ}\text{C}. The temperature coefficient for the acid is ΔpKa/ΔT=−0.015 /∘C\Delta pK_a/\Delta T = -0.015\,/^{\circ}\text{C}. Will this buffer remain within its effective buffering range for a solution that must be maintained at pH 7.40? Support your answer with the adjusted pKapK_a.

Related theory

Browse the problem library