The molar absorptivity of a tyrosine residue at 280 nm is 2000 M-1cm-1, while for tryptophan it is 5500 M-1cm-1. A protein has been isolated that is known to contain one tyrosine residue and an unknown number of tryptophans. A 1.0 micromolar solution of this protein is placed in a 1.0 cm cuvette and the absorbance at 280 nm is measured as 0.024. How many tryptophans are in the protein
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The molar absorptivity of a tyrosine residue at 280 nm is 2000 M-1cm-1, while for tryptophan it is 5...
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