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1. A reaction mixture is prepared by combining 2.00mL buffer, 0.400mL0.125MClO, and 0.150mL blue dye. What is the initial molar concentration of ClO - in the mixture. 2. For a study similar to the one carried out for this lab, the concentration of a chemical decreases from its initial concentration (at t=0.00 min), to 50% of its initial concentration at 4.52 minutes, and then to 25% of its initial concentration at 9.04 minutes. Based on this behavior, what is the reaction order with respect to this chemical? 3. Calculate the Beer's Law constant, m, for a solution that gives A=0.368 when its concentration is 6.30105M. Beer's Law: The relationship between absorbance and concentration, measured using the same sample cell ("cuvette") is called Beer's Law: A=mc where m is the Beer's law constant. Example 1: What is the Beer's Law constant, m, of a substance if a 1.25104M solution produces an absorbance of 0.652 (at a particular wavelength)? A=mcm=cA=1.25104M0.652=5.22103M1 Note " M1 " units for " m ". Example 2: You find that A=0.219 for a solution of the same substance described in Example 1 (measured using the same apparatus and at the same wavelength). What is the substance's molar concentration? A=mcc=mA=5.22103M10.219=4.20105M