QUESTION 5
Aerobic degradation of benzoic acid by a mixed culture of microorganisms can be represented by the following reaction:
C6H5COOH + a O2 + b NH3 → c C5H7NO2 + d H2O + e CO2
where C6H5COOH is the substrate, and C5H7NO2 is the bacteria.
Determine a, b, c, d and e, knowing that 0.9 moles of CO2 are produced per mole of O2 consumed.
MCQ Options:
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a = - 4.5 b = 2.4 c = 2.4 d = - 1.8 e = - 5 |
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a = 5 b = 0.5 c = 0.5 d = 2 e = 4.5 |
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a = 2.73 b = 0.91 c = 0.91 d = 0.73 e = 2.45 |
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a = 4.5 b = 2.4 c = 2.4 d = 1.8 e = 5 |
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a = 3 b = 0.48 c = 0.48 d = 4.32 e = 3.12 |
QUESTION 5 Aerobic degradation of benzoic acid by a mixed culture of microorganisms can be represented...
Aerobic degradation of an organic compound by a mixed culture of organisms in waste water can be represented by the following reaction. C_3 H_6 O_3 + a O_2 + b NH_3 rightarrow c C_5H_7NO_2 + d H_2O + e CO_2 a. Determine a, b, c, d, and e, if Y_X/S = 0.4 g X/gS. b. Determine the yield coefficients Y_X/O2 and Y_X/NH3. c. Determine the degree of reductions for the substrate, bacteria, and RQ for the organism.
Benzoic acid, C6H5COOH, is a weak acid with Ka = 6.3 × 10-5. What amount of sodium benzoate, C6H5COONa, must be dissolved in 300. mL of 0.400 M C6H5COOH, in order to prepare a buffer of pH 4.50? A. 0.24 mol B. 0.12 mol C. 0.36 mol D. 0.60 mol E. 0.48 mol
Titrate 40.0 mL of 0.0350 M benzoic acid (C6H5COOH, Ka = 6.3 × 10–5) with 0.0700 M NaOH Calculate the pH in the solution at equivalent point. a) 5.716 b) 8.284 c) 8.372 d) 5.628 e) 7.546
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