B/ Express the units for KW in s/m and m/(s bar), for the following conditions: Permeate flow = 1 membrane area=1,600m²; density of water = 1,000 kg/m³; (APa-Az) = 2,750 kPa. 3,520m³/day;
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- A certain gas obeys the equation of state PVm RT(1 + bP), where b is a constant. Prove that for this gas (a) (dU/dV)T = bP2; (b) CP,m - CV,m = R(1 + bP)^2; (c) mJT = 005) Determine Assume the soil coefficient (log Koc). factor teem in your molecular structure is given as по Collection The followe : Calculations. Bekow CI Given, log Koc = ос NH2 0.53' x + 0.62 + Σ n; Pj, Where X is the first order molecular connectivity n; is the number of groups of type 'j molecule and Pj Is Collection factor in Index the for each group. (6 marks) [Last question NumericalPenicillin is hydrolyzed and thereby rendered inactive by beta-lactamase, an enzyme present in some penicillin-resistant bacteria. The mass of this enzyme is 30.0 kDa. The amount of penicillin hydrolyzed in 1 minute in a 1 mL solution containing 3 x 10-3 g of the enzyme was measured as a function of the concentration of penicillin. Calculate Km, Vmax , and kcat from the following data: (Clearly show where 1/Vmax and -1/Km are; clearly explain how to obtain your kcat value). [S] (mM) vo (mM s-1) 0.14 0.138 0.28 0.234 0.55 0.333 0.77 0.388 1.52 0.491
- (a) Water in vadose zone contains chlorobenzene of concentration 40 mg/L. What is the equilibrium concentration soil air in contact with this solution? (b) An aquifer with porosity 0.3 has distribution coefficient of TCE as 100 L/kg. What fraction of TCE is in aqueous phase and sorbed phase of the soil?4.64. The gas-phase reaction between methanol and acetic acid to form methyl acetate and water CH;OH + CH3COOH = CH3COOCH3 + H2O (A) (В) (C) (D) takes place in a batch reactor. When the reaction mixture comes to equilibrium, the mole fractions of the four reactive species are related by the reaction eqilibrium constant Ky : = 4.87 YAYB (a) Suppose the feed to the reactor consists of n40,NB0, NCo, NDO, and no gram-moles of A, B, C, D, and an inert gas, I, respectively. Let į be the extent of reaction. Write expressions for the gram-moles of each reactive species in the final product, nA(2), nB(3), nc(E), and np(3). Then use these expressions and the given equilibrium constant to derive an equation for , the equilibrium extent of reaction, in terms of n20,.., N1o. (see Example 4.6-2.) (b) If the feed to the reactor contains equimolar quantities of methanol and acetic acid and no other species, calculate the equilibrium fractional conversion. (c) It is desired to produce 70 mol of methyl…Full solution please
- (b) A motor car tyre contained a fixed mass of air at 27 °C. Its pressure was 220 k Nm-4 abe atmospheric pressure. After a 60-minute drive, the air pressure rose to 250 k Nm-2 above atmospheric pressure. What was the new temperature of the air in the tyre, in degrees Celsius, if the volume of air remained constant? Note: (Atmospheric pressure = 100 k N m-2)b) A gaseous mixture contain 32.9 mol % He, 40.7 mol % N2 and 26.4 mol % Ar. Determine the composition of this mixture on a mass basis based on the molecular weight given: MW (He) = 4.003 , MW (N2) = 28.02, MW(Ar) = 39.95 %3D6. Using dimensional analysis, show how 0.082057 Latm mol. K Significant figures note: the last digit on both values has been rounded. NOTE: 1 J = 1 N-m = 1 kg.m², and 1 Pa = 1 N m² is equal to 8.3145 or 1 kg m.s mol - K
- A STOCK SOLUTION containing 0.1581 g/L K2CrO4 was prepared.In order to make the CALIBRATION STANDARD, 5 ml of the STOCK was transferredinto a 50ml volumetric flask and then diluted with an appropriate solvent.Calculate:(a) The ppm of K2CrO4 in the CALIBRATION STANDARD.(b) The molarity of K2CrO4 in the CALIBRATION STANDARD. (c) Calculate the molar absorptivity of K2CrO4 (at 371.0 nm). Assume that Beer's Law isobeyed over this concentration range.At 371.0 nm, this CALIBRATION STANDARD in a cell of path length 1.00 cm gave a %T of 59.752.Bb Blackboard Collaborate Ultra – 1 X Bb Collaborate - Live Tutorial Ses X O Mail - Jenna Lewis - Outlook G 0.615 ml to litres - Google Search x + 8 https://au.bbcollab.com/collab/ui/session/playback Not syncing O Instagram (11) Facebook In class questions: Q97: - Use the provided equation to calculate the following: KMNO, (aq) + HCI (aq) → MnCl, (aq) + Cl, (g) + H,0 (1) + KCI (aq) а. The moles of H,0 that can be obtained from 15.0 ml of 0.250 M HCI. b. The volume of 0.150 M KMno, needed to produce 0.0143 g MnCl,. С. The volume of 2.50 M HCI needed to produce 125 ml of 0.525 M KCI. 2KMNO, (aq) + 16HCI (aq) → 2MNCI, (aq) + 5Cl, (g) + 8H,0 (1) + 2KCI (aq) 01:36:12 01:59:28 [CC 9:14 AM O Type here to search 14°C Sunny 4) ENG 9/09/2021b) Conductivity measurements were one of the first methods used to determine the ionization constant of water (Kw). The ionization constant of water is given by the following equation: Kw = (aµ+)(aoH-) = M ) Given that: т a = Y+ X m° = 1 mol kg. Quantities a, V+ and m denote activity, mean activity coefficient and concentration. log y+ = -|Z+Z_|A/Im, A = 0.509 for aqueous solution at 25 °C. Assume that Y+ × 1 and water is a weak electrolyte with degree of dissociation of a. Using the expression provided, show that the molar conductivity of pure water (A) can be -1/2 written as A(H20) = (1 M)K²[^.(H*)+ A,(OH¯)]. Quantity 1, denotes molar ionic conductivity at infinite dilution. [A(H20) = 5.5 × 10-6 S m¬1 and Kw = 10-14] %3D Kohlrausch and Heydweiller measured the conductivity of water in 1894 and determined that A(H20) = 5.5 × 10-6 S m-1 at 298 K. Using the information provided in Table 1, determine Kw. Table 1 Cation A. (01 cm? mol) Anion Ao ( cm? mol-1) H3O* or H* 350.0 OH 199.2 NH4+…