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- If to a solution of NaOH, in water and ethanol (20 ° C) 3 mmol of A (106.11 g / mol) and 2 mmol of B (58.06 g/ mol) and stirred magnetically for 10 minutes. After the reaction is completed, we proceed to isolate (work- up) and purify at C (246.29 g/ mol) yielding 0.300 g of the pure product. Calculate the% return for C showing his work. please show every single step and calculationsYou are given 5mL of cyclohexanol in a clean 100mL round bottom flask and its reacted with 15mL of (conc.) glacial acetic acid. The solution cooled for 20 minutes, followed by addition of 35mL of bleach using a separatory funnel. The solution was cooled and stirred for 10 minutes. The final product is cyclohexanone. The mass of the final product is 2.9g. Calculate percent yield. Interpret IR spectrum of product (shown below). Indicate keys peaks and functional groups.Which of the following pairs is incorrectly matched? (A analytical balance : +/- 0.0001 g (B) microbalance : +/- 0.1 µg top loading balance : +/- 10 mg D microbalance : +/- 1X 10-4 g Francis A. Santos
- In a solution containing 25ml (NH4)2S2O8 with a total volume = 100 ml =0.1 liters , the solution composition are shown below.Note; the solution require 25ml of 0.2M S2O8^-2.SOLUTION Kl KNO3 EDTA Na2S2O3 STARCH50ml 23ml 1 drop 1 ml 10 dropsExperiment; initial (S2O8-2) =0.05M ; INITIAL (l-)=0.10 Mml of S2O3^-2 added Time in minutes and seconds for color change Cumulative time in seconds Total moles of S2O8^-2 consumed1 1:43 2.0 x 10^-42 1:20 4.0 x 10^-43 1:13 6.0 x 10 ^-44 1.17 8.0 x 10 ^-45 1.24 10 x 10 ^-41a) Find the cumulative time in secondsb) for the runs ,plot mole of S2O8^2- REACTION vs. time in seconds2) Draw a straight line through ( origin ) the points and calculate the slope3) divide the value of the slope by the total volume of ( 0.1 L) to get the rate in units of M/s4) find the rate5 )calculate x and y and kDrye quantity of primary standard potassium hydrogen phthalate (0HP) for about 2 heat 110°C (Fig 35-9), and cool in a desiccator. Weigh individual 0,7 to 0.8 g samples (to the nearest 0.Img) into 250 i conical flasks, and dissolve each in 50 to 75 mL of distiled water. Add 2 drops of phenolphthalein; titrate with base until the pink colour of the indicator persists for 30 seconds (Note). Calculate the concentration of the NaOH solution, 07624 g Velume ced (n)? Mass of KHP Initial volume () find volume (ml) 50 25 50 75 Titration 0 75 125 175 49 87 2 55 51 05 190 49 90 Calculate the concentration of the NaOH solution02:21 4G File Details 4CH003/UM1: Fundamentals of... Introduction Perhaps the cleanest method of conducting an oxidation is by catalytic oxidation, since this minimizes the problem of removal of unwanted by- products. However, the conditions used are often vigorous and require the use of specialized equipment. By comparison, the product of a "chemical" oxidation may be more difficult to purify due to the presence of the reduced form of the oxidizing agent and potential "tars" that may arise from "over- oxidation". Because chemical oxidation can be carried out using conventional equipment they are more popular. dissolving sodium or potassium dichromate in acid is a commonly used oxidizing agent, being classed as a relatively powerful oxidant and having water soluble by-products (Cr III salts). Sulphuric acid is generally used if the material to be oxidized is water soluble and glacial acetic acid is used if it is Chromic acid, prepared in-situ by not. Alcohols are readily oxidized to…
- In a converter, 9.33 kg of SO3 is fed and allowed to come into contact with a certain amount of 91.34% H2SO4 to produce 4.71% oleum. How much oleum was produced in kg? Use the following molecular weights: 80 kg/kmol SO3, 98 kg/kmol H2SO4.When the compounds analyzed by Robrob were passed on to the next test, another scientist, Kikoko, needed to determine the molecular weight of the ctive compound. They created a solution with a concentration of 20.0%w/w from the solid active compound and the solution had a density of 1.40 g/mL. From this solution, 10µL was taken and mixed with 190µL of reagent and water. It was analyzed and showed a concentration of 5x10-4 M compound. a. What is the concentration (in molarity) of the 20%w/w solution? b. Why was the concentration of the solution expressed as %w/w initially? c. What is the molecular weight of the active compound?d) Calculate the atom economy for Ethylene Oxide (CH2CH;O) preparation CH;=CH2 + Cl2 +H2O CICH,CH2OH + HCl (Step 1) CICH2CH2OH+ Ca(OH)2 CH2CH2O + CaCl2 + H2O (Step 2),
- ASAP(1) GUIDE:- Substituted working formula - From the general formula, directly present your answer with substituted values already - Format: "F=_+_-_" (examples: F=2+1+1 , F=1+2+2 ... ) - Spaces and other formats will invalidate your answer - Degrees of freedom - Multiple choice, each item is equivalent to one ANSWER THIS QUESTIONS 1a. What is the number of components for the formulation: "Beeswax + Glycerin + Methyl paraben"? CHOICES: A. ONE, B.ZERO, C.TRHEE, D. TWO 1b. Present your working formula for the formulation: "Beeswax + Glycerin + Methyl paraben" 1c. What is the degrees of freedom for the formulation: "Beeswax + Glycerin + Methyl paraben"? CHOICES: A. ONE, B.ZERO, C.TRHEE, D. TWOPROBLEM SOLVING: REPORT QUANTITIES IN THEIR PROPER SIGNIFICANT FIGURES. NO NEED TO TYPE UNITS IN YOUR ANSWER. DO NOT ROUND OFF IN BETWEEN CALCULATIONS. The %purity of a powdered crude sample of Na2CO3 containing only inert impurities is to be determined by reacting 225.0 mg of the crude sample to 10.0 mL of 3.00 M HCI solution, and bubbling the resulting CO2(g) product in water that is at exactly 29 °C. After the reaction has completed, the level of the liquid inside the eudiometer rests 4.30 cm above the water level in the beaker. The graduation on the eudiometer indicates that the trapped gas is 44.37 mL. The experiment was done under a barometric pressure of 755.2 torr. Write the balanced chemical equation of the reaction in your solutions sheet. What is the sum of all the coefficients of the balanced chemical equation? Answer: Determine the pressure of the trapped gas inside the eudiometer in mmHg. Answer: Determine the partial pressure of the collected CO2 in mm Hg. Answer: How…