Reagent Table:Reagent proMolarequilamentsSabicbeade/M.W. (Mammal equilamentsSalcylamide 137.1 mg/mmol 1.0Sodium Iodide (val) 149.9 mg/mmol 1.15SodiumHypochlorite 57% 74.44mg/mmol(Nara)951 Ethanol NW SolventmmolesImmotes14.6mm16-79mmolWeightgrams or VLCm292.52g1.207: 17.52mmol17.52 mmol 22.88mL40m² AЛьA

Understanding the TableThe table appears to be a laboratory reagent table, detailing the specific…

Answered: Reagent Table: Reagent pro Molar…

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter4: Calculations Used In Analytical Chemistry

Section: Chapter Questions

Problem 4.32QAP

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2. In a laboratory experiment you react 20.0 mL of 25% by mass C2H&N2 with 8.000 NiCl2.6H20 to obtain the product Ni(NH2CH2CH½NH2j3Cl2 complex. The C2H3N2 solution used in this experiment is 25.0% by mass, with a density (d) of 0.950 g/mL. (MW NICI2.6H2O= 237.69 g/mole, MW C2HgN2=60.10 g/mole, MW tris(ethylenediamine)nickel(II)chloride = 309.89 g/mole) a. Write down the balanced equation of the synthesis. b. Determine the number of moles of each reactant that you use. c. Determine which reactant is the limiting reactant, giving your reasoning. Show all your work to get full credit. (5 points) d. Calculate your percent yield if the dry product weighs 7.000 g.
A salt solution (30% Na2CO3) weighing 1ton iscooled to 20C where the salt crystallizes asdecahydrate. What will be the crystal yield ifthe solubility is 21.5 kg anhydrous Na2CO3/100kg water? (assume that 3% of the totalsolution is lost by evaporation)
A solution of tryptophan has an absorbance of 0.64 at 280 nm. Given with of 6.04 x 103 Msolution of tryptophan and path length of 0.5 cm. What is the molar absorptivity oftryptophan?
Below is visible light spectrum and the UV-Vis spectrum for a cobalt (II) solution. Determine the color of a cobalt (II) solution? Epsilon is molar absorptivity and lambda is wavelength in nanometers. 740-625 625-590 590-565 565-520 520-500 500-435 435-380 Wavelength (nanometers) Co 3. 300 400 500 600 700 800 A. pink to violet B. Orange to yellow C. Blue to ligght blue D Green to yellow
6.3017g sample was weighted Analytically and made up volumetrically to 500mL. A 25mL alliqout of this solution required a total valume of 41.32mL of 0.0987MHCl to reach bromocresol green endpoint Another 25ml alligout of this salution was treated with 25mL of 0.1014M NaOH react with excess of BaCl₂ solution und left over NaOH required 21.83mL of 0.0987MHCl to reach the phenolpthelin end point. Determine the percentage of Na₂CO3 and. NaHCO3
What is the microscopic explanation for the macroscopic behaviour illustrated in Figure 11.15?
Patients undergoing an upper gastrointestinal tract laboratory test are typically given an X-ray contrast agent that aids with the radiologic imaging of the anatomy. One such contrast agent is sodium diatrizoate, a nonvolatile water-soluble compound. A 0.378-m solution is prepared by dissolving 38.4 g sodium diatrizoate (NaDTZ) in.l.60 102 mL water at 3 1.2C (the density of water at 31.2C is 0.995 g/cm3). What is the molar mass of sodium diatrizoate? What is the vapor pressure of this solution if the vapor pressure of pure water at 31.2C is 34.1 torr?
20.
Which of the following equations is correct? Oa. O a. AG = Ginitial – Gfinal %3D Ob. . 1G = AH - TAS %3D O G=S- PV Od G = H – PV O e. AG = AS – TAH
eirli ri boeu 2s9dut tesi ari neolb of onot 2u of ton insiioqmi ti ei vrlW 6. If an unknown forms a silver mirror in the Tollens test, forms a purple color in the Schiff test, produces no precipitate in the iodoform test, has a refractive index of 1.5250, and forms a semicarbazone melting at 124–126 °C, what is its identity? Support your conclusions. Satsoilqid ni elest evitstilsup orli miohsq of inshoqrai ti ai ydW .E ISBN O-87540-728 © 1999 by Chemical Education Resoure
A saturated Na₂CO₃ solution isprepared, and a small excess of solid ispresent (white pile in beaker). A seedcrystal of Na₂ ¹⁴CO₃(¹⁴C is a radioac-tive isotope of ¹²C) is added (small redpiece), and the radioactivity is mea-sured over time. (a) Would you expectradioactivity in the solution? Explain.(b) Would you expect radioactivity inall the solid or just in the seed crystal? Explain.
Gadolinium oxide, a colorless powder which absorbs carbon dioxide from the air, contains 86.76 mass % Gd. Determine The pseudoformula of the compound is ___________. Group of answer choices 1.Gd0.552O0.8275 2.Gd7O 3.Gd87O13 4.Gd0.8676O 5.Gd0.55O

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