1. What is the chemical reaction rate constant responsible for the degradation of drug X in this solution? a. 0.099 month b. 0.197 month' c. 0.693 month d. 7.03 month
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- 18. Jet is an undergraduate chemistry student, he’s out in the laboratory trying to determine the volatile organic compounds as well as overall protein content of the leaf and stem of a malunggay (Moringa oleifera). He subjected the leaf and stem in a separate digestion reaction (treatment of sulfuric acid), afterwards he subjected the products to high temperature induction to get a dry ash like substance. Which type/s of chemical analysis did Jet employ to reach his objective?I. Qualitative AnalysisII. Quantitative Analysis III. Instrumental Chemical AnalysisIV. Wet Chemical AnalysisA. II & IV onlyB. I & IV onlyC. I, II & IV onlyD. I, II, III, IVIn a batch reactor, reactant A is steadily converted into product B. The initialconcentration of reactant A is 100 mg/L. During a 10-hour reaction course, it wasobserved that the concentration of A in the reactor decreased at a constant rate of 10mg/L per hour. Based on the result, you can determine that the transformation reactionA→B follows ( ) with respect to reactant A.The first-order degradation rate constant k was determined to be 0.0125/day for contaminant A and 0.0030/day for contaminant B in a soil. Calculate the half-life T1/2 and the 95% dissipation time for these contaminants in the soil. Compare the persistence between the two contaminants.
- Benzene is dissolved at a constant initial concentration of 350 mg/l and is contained within a landfill in leachate water above bottom liner of the landfill system. It starts to diffuse through the liner at time t = 0. Using Equation Ci (x,t) = Co erfc x/ 2(D*t)0.5 related narrative, and (error function table), calculate the concentration of benzene at its breakthrough location as it diffuses through a 1.5 meter thick liner (x=1.5 meters represents breakthrough location where liner fails of contaminant is released), after 50 years. Assume D = 10-5 m2/sec (diffusion coefficient in free standing water) and w = 0.7 (coefficient of tortuousity). Clearly present your assumptions and your value of erf, Select the answer range which best fits the answer you calculate. Group of answer choices 315 to 350 mg/l My answer is not in the range of any of the choices my answer. 215 to 314 mg/l 175 to 200 mg/l 370 to 400 mg/lkindly help me with this problem Thank you! Subject: Physical Chemistry Instructions: solve as neatly as possible and show complete solution.No rounding-off for your decimals (include all decimals in your calculator in your computation). The following data were obtained for the adsorption of acetone on charcoal from an aqueous solution at 180C. Y (millimoles/g) C (millimoles/liter) 0.208 2.34 0.618 14.65 1.075 41.03 1.5 88.62 2.08 177.69 2.88 268.97 a) Find the constants k and n of the Freundlich equation. b) Find the constants a and b in the Langmuir equation. c) Find the constants k and n in the Temkin isotherm. d) Which of the isotherm fit the data best?Please see the activity sheet below for the context and question. Thank you
- Explain 4 traditional techniques half life method , isolation method , differential method and isolation method in chemical kinetics?Ali has measured the oxidative stability of palm oil sample under accelerated storage condition at 60*C for 6 days The following data were recorded for the peroxide value and p anisidine value of the palm oil after 5 days of storage time: Sample weight 1.0030 g Concentration of NazSzO3 = 0.001 N Volume of NazSzO3 titrated for sample solution = 1.35 ml Volume of NazSzO3 titrated for blank solution 0.20 ml Absorbance for sample solution = 0.907 Absorbance for blank solution 0.203 Calculate: i) peroxide value ii) p-anisidine value iii) TOTOX valueChemistry An aquifer contaminated with petroleum is found to have the following component concentrations at a particular site: benzene158 ppm toluene124 ppm ethylbenzene91 ppm xylene45 ppm n-heptadecane161 ppm pristane 84 ppm Provide an estimate for the age of the spill at this site using (a) BTEX ratio and (b) nC17:Pr ratio. Show your calculations and use units throughout. Give proper s.f. for the answer.
- If 5 µM enzyme was used to obtain the data in the summary plot below, V-max = ________________ µM sec-1 and Km = ____________ µM for this enzyme (Enter numeric values to the nearest integer; Do NOT write units.)An experiment was performed in a similar manner as Experiment 4 (The Hydrolysis of t-Butyl Chloride). The following data was obtained: Total Time (s) Volume NaOH Titrant used (mL) 0 0.00 49 1.99 103 4.00 164 6.00 216 8.00 267 10.02 319 11.97 381 14.01 437 15.99 483 17.97 540 20.00 Final Volume NaOH to fully react sample: 87.68 mL Assume the proposed reaction mechanism in the experimental procedure is correct. Based on the above measurements, how many minutes would it take for the solution to reach 84.0% completion? Round your final answer to two decimal places.You’ve made a 25 mM stock of colchicine (a tubulin inhibitor; dissolved in distilled water), which you’d like to use to study the effect of tubulin on phagocytosis in T. pyriformis. Based on published research articles that you’ve read, you’d like to preincubate T. pyriformis with colchicine at a final, effective concentration of 75 µM. Assuming you need 40 µL of the cell+colchicine mixture for your experiment, please explain how you can use your 25 mM solution of colchicine, T. pyriformis cells, and distilled water to create your cell+colchicine mixture.