A mixture is prepared using 26.00 mL of a 0.0706 M weak base (pKa = 4.591),...

A mixture is prepared using 26.00 mL of a 0.0706 M weak base (pKa = 4.591), 26.00 mL of a 0.0530 M weak acid (pKa = 3.259) and 1.00 mL of 0.000114 M HIn and then diluting to 100.0 mL, where HIn is the protonated indicator. The absorbance measured at 550 nm in a 5.000 cm cell was 0.1227. The molar absorptivity (ε) values for HIn and its deprotonated form In– at 550 nm are 2.26 × 104 M–1cm–1 and 1.53 × 104 M–1cm–1, respectively.

What is the pH of the solution?

What are concentrations of In- and HIn?

What is the pKa for HIn?

Expert Solution

Comment in case of any doubt.

queen_honey_blossom answered 2 years ago

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