Equal molar amounts of methyl orange (red in its protonated form

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

Problem

Equal molar amounts of methyl orange (red in its protonated form, yellow in its deprotonated form;

pK_a=3.5

) and bromothymol blue (yellow in its protonated form, blue in its deprotonated form;

pK_a=7.1

) are simultaneously added to a solution with pH 8.0. Assuming the colors simply combine, predict the overall observable color of the solution.