Bromocresol green (yellow in its protonated form

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

Problem

Bromocresol green (yellow in its protonated form, blue in its deprotonated form) has a

pK_a

of 4.8. A buffer solution is at pH 6.0. Determine the predominant color observed when a drop of bromocresol green is added to the solution.