1. The properties that must be possessed by the adsorption reagent in air sampling are… a. Reagents must be resistant to oxidation b. Reagents must be qualitative c. Reagents must be applicable to all gaseous analytes d. Reagents must be in large quantities
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1. The properties that must be possessed by the adsorption reagent in air sampling are…
a. Reagents must be resistant to oxidation
b. Reagents must be qualitative
c. Reagents must be applicable to all gaseous analytes
d. Reagents must be in large quantities
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- Read the excerpts from chemistry journal articles. Determine which section each quote was likely derived from, then label the quote accordingly. "A total of 18 GFRP-SR confined concrete cylinders with a diameter of 150 mm Discussion and a height of 300 mm were constructed and tested under axial compression." "Since Alfred Loomis's studies in the 1920's, ultrasonic waves of various frequencies have found uses in areas such as medical imaging, geological imaging Introduction (SONAR), industrial cleaning and welding, solution mixing, and even jewelry cleaning." %3D "The thermogram of the pure NIA revealed a sharp endothermic signal with maximum Experimental at 204.75 °C, and AH = 30.54 kJ/mol, that corresponds with the melting of the NIA." "As we have demonstrated here that a pulse of blue light 450–475 nm, the simulating wavelength of melanopsins and/or cryptochromes, increases the expression of Per1 Results and Per2, one of these photopigments is most probably responsible for light…For each of the following questions, more than 1 answer may be correct: 1. Molecular adsorptiona. Describes the adsorption of gases on the surface of a solidb. Is used in the separation of substancesc. Describes the preferential adsorption of substances with positively or negativelycharged function groupsd. Has utility in the production of purified water in pharmacy 2. Mechanism of action of polar solvents (water) includesa. Dissolving with similar internal pressures through induced dipole interactionsb. Breaking covalent bonds and ionized weak electrolytec. Formation hydrogen bridges with non-electrolytesd. Reduction the attraction between the ions of strong and weak electrolytes.Why does the collision gas have to be inert?
- Analyte may be lost at the ashing stage volatile hydride generated by the reaction that occurs is swept into the atomization chamber by an inert gas, where it undergoes decomposition. detection limits by a factor of 10 to 100 compared to alternative methods v limited to only the determination of mercury.answer 13,19,25 (IDK WHAT TO DO) PLS HELP SO THAT I CAN GET A GRASP A group of students enrolled in a Physical Chemistry Laboratory class performed an experiment on the THE STUDY OF AN ADSORPTION ISOTHERM: ACETIC ACID SOLUTIONS ON ACTIVATEDCARBON. The data gathered by the group are documented in the tables below. Solve for the unknown data.A^ A B Av • E E EV ... Example 3: When a 5.00 g sample of commercial sodium bicarbonate (baking soda ) was treated by volatilization gravimetry the mass of CO, absorbed by the NaOH tube was 2.40 g. Calculate % NaHCO, in baking soda sample.
- In the fluorination reaction of butadiene, the butadiene is adsorbed onto a catalyst C.To test the efficiency of the adsorption, the adsorption isotherm was determined.The volume of butadiene per gram of C varied as follows at constant temperature:p( kPa)- 13.3; 26.7 ; 40.0 ; 53.3 ; 66.7 ; 80.0V(cm3)-17.9 ; 33.0 ; 47.0 ; 60.8 ;75.3 ; 91.3At the temperature used, p* for butadiene is 200 kPa. Find a suitable isotherm for the data and determine Vmon. please assist.Calculate Trial I, Trial II, Trial III Vol.Ag(NO3)Added.Explain the difference between a. nucleation and particle growth b. occlusion and mixed-crystal formation c. precipitation and coprecipitation
- How many tabs are to be cut into the filter paper in construction of the apparatus, and how many different metals are to be placed on the apparatus? O There are to be 5 tabs cut, and S metals placed on them. There are to be 6 tabs cut, but only 5 metals placed on 5 of the 6 tabs. There are to be 5 tabs cut, and 7 metals placed on the S tabs, with two metals overlapping O No tabs are to be cut at all, and all 6 metals are to be placed wherever I feel like.20. How does the operator control digestion time in an aerobic digester? 1. By controlling degree of sludge thickening before digestionmoon als sis and 2. By measuring out the amount of polymer added how 3. By automatically controlling when the tank s and closes through valves and the SCADA system opens 4. By controlling sludge blanket depth and thicknessWhat is the difference between a diffusion reaction and a diffusion-controlled reaction?