(20pt) (a)You are planning to produce a recombinant protein in E. coli when the cell density reaches 200 million cells/L, how long would you have to wait if you start with the initial inoculation density of 1,000 cells/L and a glucose concentration of 1g/L? (b) What is the final concentration of glucose? Given: for E. coli growth on glucose, µmax = 1.2 hr-1, Ks = 1x10-5 g/L, kd = 0.02 hr-1, cell mass of 1 cell = 1ng, YX/S = 0.6 g/g glucose

Problem page combustion of hydrocarbons such as pentane ( c5 h12 ) produces carbon dioxide, a "greenhouse gas." greenhouse gases in the earth's atmosphere can trap the sun's heat, raising the average temperature of the earth. for this reason there has been a great deal of international discussion about whether to regulate the production of carbon dioxide.(a) write a balanced chemical equation, including physical state symbols, for the combustion of liquid pentane into gaseous carbon dioxide and gaseous water. (b) suppose 0.350 kg of pentane are burned in air at a pressure of exactly 1 atm and a temperature of 20.0 degree c. calculate the volume of carbon dioxide gas that is produced.be sure your answer has the correct number of significant digits.