(Solved): Figure 2. Biuret protein assay standard curve of concentration vs. absorbance. When assayed, the fi ...

Figure 2. Biuret protein assay standard curve of concentration vs. absorbance. When assayed, the first unknown protein sample resulted in an absorbance of \( 0.18 \). What is the concentration of protein in this sample in mg/mL? Give your answer to 2 decimal places; provide a numerical answer only (do not enter units in the box below).