A solution containing a metal complex absorbs at 480 nm with molar extinction coefficient of 15,000 $\mathrm{L\,mol^{-1}\,cm^{-1}}$. If the path length of the cell is 1.0 cm and transmittance is 20.5%, the concentration (in $\mathrm{mol\,L^{-1}}$) of the metal complex is:
(a)$2.29 \times 10^{-5}$
(b)$8.75 \times 10^{-5}$
(c)$4.59 \times 10^{-5}$
(d)$1.37 \times 10^{-5}$
Answer
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