A researcher needs 50.0 mL of a solution that gives an absorbance of 0.360 when…
CHEMISTRY · Single correct · AP · Chemistry · Properties of Substances and Mixtures · Properties of Substances and Mixtures
Problem
A researcher needs 50.0 mL of a solution that gives an absorbance of 0.360 when measured in a 1.00 cm cuvette at a wavelength where the molar absorptivity is 3.60×102Lmol−1cm−1. If the available stock solution has a concentration of 0.500 M, what volume of the stock (to the nearest 0.01 mL) should be pipetted and then diluted to 50.0 mL?
(a) 1.0 mL
(b) 10.0 mL
(c) 0.10 mL
(d) 0.20 mL