Metabolic engineering Consider the engineering design of microbial cell culture and growth in the field of biotech- nology and metabolic engineering. Bioreactors are employed incorporating the use of bio- chemical substrates that provide essential chemical elements for the growth of the microor- ganisms. A typical stoichiometric representation of the aerobic growth of a microorganism with a defined chemical formula is shown below С, Н, ОН + а0, b NH, → cCH, No.15O04 + dH,0 + eCO, (C-source) (O-source) (N-source) (Microorganism) The ratio of moles of CO2 produced per mole of O2 consumed is called the respiratory quotient, RQ, which can be experimentally determined, and is therefore treated as a known quantity. To determine the theoretical yield of production (growth) of the microorganism, the stoichiometric coefficients, a, b, c, d are required. One can easily formulate an elemental mass balance for each of the four key elements. (a) Formulate an elemental mass balance for each of the four key elements. (b) Solve the system for RQ = 2.7.

Metabolic engineering Consider the engineering design of microbial cell culture and growth in the field of biotech- nology and metabolic engineering. Bioreactors are employed incorporating the use of bio- chemical substrates that provide essential chemical elements for the growth of the microor- ganisms. A typical stoichiometric representation of the aerobic growth of a microorganism with a defined chemical formula is shown below С, Н, ОН + а0, b NH, → cCH, No.15O04 + dH,0 + eCO, (C-source) (O-source) (N-source) (Microorganism) The ratio of moles of CO2 produced per mole of O2 consumed is called the respiratory quotient, RQ, which can be experimentally determined, and is therefore treated as a known quantity. To determine the theoretical yield of production (growth) of the microorganism, the stoichiometric coefficients, a, b, c, d are required. One can easily formulate an elemental mass balance for each of the four key elements. (a) Formulate an elemental mass balance for each of the four key elements. (b) Solve the system for RQ = 2.7.

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter4: Energy And Chemical Reactions

Section: Chapter Questions

Problem 120QRT

See similar textbooks

Similar questions

Effervescent tablets contain both citric acid (C6H8O7) and sodium bicarbonate (NaHCO3) and release carbon dioxide gas when dissolved in water as well as forming trisodium citrate (Na3C6H5O7) and water. A typical effervescent tablet contains 1.00 g of citric acid and 1.92 g sodium bicarbonate. (a) Assuming that carbon dioxide acts as an ideal gas, determine the work done due to the evolution of carbon dioxide by the dissolution of one effervescent tablet in water at 25.0 °C and atmospheric pressure (1 atm i.e. 101325 Pa).
Photosynthesis in plants converts carbon dioxide and water into glucose (C6H1206) and oxygen according to the equation below. 6CO2 (g) + 6H20a → C6H1206 (s) + 602 (g) Substance СО2 (8) H20M C6H1206 (s) 02 (g) kJ AH°; (mol -393.5 -285.8 -1273.3 J H° mol. k 213.6 69.9 209.2 205.0 Calculate the AHº, ASº, and AGº. Is the reaction spontaneous at standard conditions?
The so called hydrogen economy is based on hydrogen produced from water using solar energy. The gas may be burned as a fuel: 2H2 (g) + O2 (g) ---> 2H2O (l) A primary advanatge of hydrogen as a fuel is that it is nonpolluting. A major disadvantege is that it is a gas and therefore is harder to store than liquids or solids. Calculate the volume of hydrogen gas at 25oC and 1.00 atm required to produce an amount of energy equivalent to that produced by the combustion of a gallon of octane (C8H18). The density of cotane is 2.66 kg/gal and its standard entalpy of formation is -249.9 kj/mol.
In the standardization of HCl using pure anhydrous sodium carbonate as the primarystandard for methyl orange as an indicator, 1.0 mL HCl was found to be equivalent to 0.05gof sodium carbonate (MW =106). The normality of HCl is:
III.) Calculate Vmax and Km · S (mol·1") v, mol·l"-min 4.10 x 10° 1.77 x 10 9.50 x 10* 1.73 x 10* 5.20 x 10* 1.25 x 10* 1.06 x 10* 1.03 x 10* 4.90 x 10 8.00 x 10* 1.06 x 10* 6.70 x 10 5.10 x 10° 4.30 x 10* -6
Pressure (A) Explain the term pressure and state its S.I. unit. (B) Explain Henry’s law. (C)A bottle of H2 has just been received by the technicians in DkIT for use in the instrumentation lab. It is a 47 litre cylinder at a pressure of 50 atmospheres. The normal working pressures is 2 bar. (i) To what volume of gas will that equate at the working pressure? (ii) For how many hours will the gas last if it used at the rate of 0.5dm3 per hour? D)You see your best friend at the bar and you walk up behind her. You accidentally startle her and she takes a step backwards. Unfortunately, she is wearing high heels and her heels come down on your foot. She weighs only 55kg but the size of her heel is 6mm by 6mm.Determine the pressure that she applies on your foot. (E) If a diver dives to a depth of 35 m what will be: (i) the pressure in Pascals due the water column? (3 marks) (ii) the pressure of the air in…
‍‍ C‍6H12O6(aq)+ 2C2H5OH(aq)= 2CO2(g) Fermentation of 750 mL grape juice (density= 1.0g/L) is allowed to take place in a bottle with a total volume of 825 mL until 12% by volume is ethanol ‍. Assuming that the CO2 is insoluble in H2O (actually, a wrong assumption), what would be the pressure of CO2 inside the wine bottle at 25 degrees Celcius? (The density of ethanol is 0.79g/L .)
Acetyl Salicylate, C9H8O4, reacts with Potassium hydroxide. 1.75g of acetyl salicylate were hydrolyzed with 50cm3 of 0.57mol/dm3 of potassium hydroxide and the mixture were made up of 250cm3 with distilled water in a volumetric flask. Calculate: The number of moles of acetyl salicylate in 1.75g The number of moles of potassium hydroxide of 0.575mol/dm3 solution. The molarity of excess potassium hydroxide in the 250cm3 solution. If 1.15g of salicylic acid, C7H8O3, were obtained. Determine the percentage yield of the reaction.
A student performed the experiment described in this module, using 6.00 mL of a 3% H2O2 solution with a density of 1.03 g mL-1. The water temperature was 22 ° C, and the barometric pressure in the laboratory was 30.30 in. Hg. After the student immersed the yeast in the peroxide solution, she collected 65.40 mL of Oz. (7) Calculate the mass of H2O2 in 5.00 mL of the H2O2 solution.
The human body burns glucose C6H12O6 for energy according to this chemical reaction:→+C6H12O66O2+6CO26H2O. The products of the reaction are carbon dioxide CO2 and water H2O. Interestingly, all of the carbon dioxide and much of the water exits the body through the lungs: on every breath, the average person exhales 500.mLof air, which is typically enriched to 4% CO2 and 5% water vapor by volume. In short, when a person loses weight by dieting, the weight that is lost actually departs his body as a gas, every time he exhales. Each kilogram of body fat lost requires exhaling about 3.0kg of carbon dioxide. Calculate how many breaths it takes an average person to "exhale" 2.00kg of fat. Round your answer to the nearest thousand. You'll need to know that the density of CO2 is 2.0/kgm3
An aqueous solution of sucrose (C12H22O11) is prepared by dissolving 7.4045 g in sufficient deionized water to form a 100.00 mL solution. Calculate the molarity of the solution. Do you mind showing work? I would assume that (given) gram weight (times moles present/divided by mole(s) of compound) then divided - again by compound weight will give a percentage, then divded by the .....that's where I'm a little lost. thanks
(References) An 18.6 mL volume of hydrochloric acid reacts completely with a solid sample of MgCO3. The reaction is 2HC1(aq)+MgCO,(s)CO2(9) + H,O(1) + MgCl, (aq) The volume of CO2 formed is 175 mL at 23°C and 731 mmHg. What is the molarity of the HCl solution? Molarity- Submit Answer Try Another Version 3 item attempts remaining pr pt