A batch reactor with a height of 3.0 m and a footprint comprising of an area of 3.5 m2 is full of water. A mass of 20.0 g of chemical is added to the reactor. The chemical undergoes first-order decay with a rate coefficient of 0.17 /d. a) What is the initial chemical concentration in the reactor (in mg/L). b) Sketch the concentration of chemical in the reactor versus time. How long (in days) will it take before 92% of the chemical is removed? If the chemical is also subject to volatilization (k'v = 0.12 m/d), how long will it take before 92% of the chemical is removed? Explain the material balance equation.Please show the steps to solve this question Ans: a) 1.3 mg/L; b) 20 d; c) 16 d