Determine the pH of the solution produced in the reaction flask when 25.00mL of 0.100 M NaOH has been added to 25.00 mL of 0.100 M HC
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Determine the pH of the solution produced in the reaction flask when 25.00mL of 0.100 M NaOH has been added to 25.00 mL of 0.100 M HCl
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- Please choose the correct answer for each question: 1. Activity of a gas in equilibrium with solution is ______? A. its partial pressure; B.1.0; C. its molar concentration; D. 0.0 2. During a sorption procedure, the substance transferred from the gas or liquid phase to the solid phase is called ______ A. sorbent; B. sorbate; C. partition; D. none of the above 3. When a chemical has a lower KOW, it is more ______ A. hydrophobic; B. hydrophilic; C. more absorbable; D. less absorbable 4. _____ occurs on the adsorbent surface A. Adsorption; B. Sorption; C. Absorption; D. Adsorption and absorption 5. _____ addresses the change in the amount of a substance of interest with time. A. The equilibrium approach; B. The kinetic approach; C. Henry’s Law; D. Freudlich isotherm equationd) Calculate total hardness in ppm of a solution of both 55 mg/L Al2(SO4)3 and 45 mg/L Mg(NO3)2.Q2: A drop of liguid foluen is kept al uniform temperkure t 299 K and is suspended in air by a fine wire. The initid radius at r= 2mm. The vapor pressure of foluene 299K is f=384 Kfe and the density of liguid toluene is 366 ky Im 3. Derive equation for the time tp for the drop b evupurete Completely in a large volume of still air Calculate the tine in seconds for Complete evaporahion.
- The capillary rise (height) in mm of an ethanol having a viscosity of 0.032 J/m2. The tube has a diameter of 0.1 mm and the density of the fluid is 0.71 g/cm3During a steady flow process, the pressure of the working substance drops from 200 to 20 psia, the speed increases from 200 to 800 ft/s the internal energy decreases 20 BTU/lb and the specific volume increases from 2 to 10 ft³/lb. No heat transferred. Determine the following: a)AKE in ft-lb;/Ibm b)APE in ft-lb/lbm c)AW: (flow work) ft-lb:/lbm d)AH in BTU e) Net work in hp for 15 lb/min of fluid (use mass flow rate for this item only)Example 2: NaCl equivalent concentration 20,000 ppm. Temperature of %3D concentration 75°F. Find the Resistivity of the solution.
- The pOH of a basic solution is 3.33. What is pH?) Calculate the concentration of hydroxide ions *Select a concentration between 0.10 and 0.58 d) Calculate the pH of the methylamine solutionThe topic is all about thin-walled pressure vessels: Please use pen and paper and show the conversion in the solution.
- 10-kg of R-134a fill a 1.348-m3 rigid container at an initial temperature of 240oC. The container is then heated until the pressure is 200 kPa. Determine the final temperature and the initial pressure3. Some industrial spent catalyst was tested as adsorbent material in a batch experiment. The data are reproduced in the following table. Determine the Final Conc., Ce (mg/L) 14.88 9.55 1.89 0.58 0.44 0.61 0.36 Uptake, q (mg/g) 8.80 8.41 7.33 6.15 5.68 4.92 3.79 a. Determine the coefficients for these data assuming a Freundlich isotherm applies. b. Determine the coefficients for these data assuming a Langmuir isotherm applies. c. Which isotherm model provides a better fit to the data? Explain.Predict whether the following reactions would occur spontaneously in aqueous solution at 25°C. Assume that the initial concentrations of dissolved species are all 1.0 M. (a) Ca(s) + Cd²* (aq) → Ca²* (aq) + Cd(s) (b) 2B1¯(aq) + Sn²*(aq) – Br2(1) + Sn(s) (c) 2Ag(s) + Ni²*(aq) → 2Ag*(aq) + Ni(s) (d) Cu*(aq) + Fe**(aq) Cu²*(aq) + Fe²* (aq) 2+