3. What are the densities of the methylene chloride and water? When mixed (remember they are immiscible) which ends...
Water and methylene chloride are both colorless but immiscible liquids. How could you distinguish between the two if both are present in a separatory funnel?
If the Partition Coefficient for Benzoic Acid in one mL each of Water and Methylene Chloride is 2.10, is there more Benzoic Acid in the Water layer or the Methylene Chloride layer? A) If you have one mL each of Water and Methylene Chloride in a vial, which layer is on the top? B) If the same experiment is repeated with benzoic acid between ether and water, which layer would be the top and which layer would be the bottom....
The distribution coefficient between methylene chloride and water for solute Y is 9. An amount of 125.0.0 g of Y is dissolved in 160 mL of water. a) What weight of Y would be removed from water with a single extraction with 160-mL of methylene chloride? Report to 1 decimal place. b) What weight of Y would be removed from water (the original solution with the original amount) with two successive extractions with 80-mL portions each of methylene chloride? Report...
Part A 1. If you had used more methylene chloride in each step, you could have extracted more caffeine. Explain why you did not. Hint - What step would have taken longer (Hint: not drying). PART A Mass of Beaker & Caffeine Mass of Beaker 167.750g 67.6809 Mass of Caffeine 0.0 75 Calculations. Show your work and circle the answers. Mass of caffeine recovered: 012919 b) Actual:.07 % caffeine recovered: a) Predicted: 9 7:213% b) Actual: 92.105% PART B Unknown...
3. List the most common NMR reference. A. Water B. Methylene chloride C. Dimethyl sulfoxide D. Carbon tetrachloride E. Tetramethylsilane
The distribution coefficient for a compound are: Benzene-water; KD= 5.5 Petroleum ether-water; KD= 5.0 Methylene chloride-water; KD= 1.0 Which is the best choice of solvent for extracting the compound from an aqueous reaction mixture? Explain your answer.
Water with 1.0 mg/L methylene chloride + 0.01 mg/L tetrachloroethylene), 70 kg adult drinks 2L/day for 30 years. What is hazard index? RfD = 0.060 for methylene chloride, RfD = 0.010 for tetrachloride 1 0.512 2 0.029 3 0.483 4 0.00029 q2) A test bottle (Blank) containing just seeded dilution water has its DO level drop by 1.1 mg/L in a five-day test. A 300-mL BOD bottle filled with 30 mL of wastewater and the rest seeded dilution water (this...
100μL of 1M sodium chloride (NaCl) is mixed with100μL of water into a single tube. What is the final concentration of sodium chloride?
What intermolecular forces are present when glycerin, water, canola oil, and dish soap are mixed? Lab procedure: 1. Glycerin and water are added to a test tube. There are now two layers: glycerin on bottom and water on top. 2. Canola oil is added to the tube and stirred; there is now a water/glycerin layer on bottom, and canola oil layer on top. 3. Dish soap is added to the tube and stirred; all parts are now mixed, then separate...
which is less dense and more dense. please write the explaination for a-d please Question 3: When immiscible organic solvent is mixed with water, two layers will form. Please identify which of the following solvents will be top or bottom layer when mix with water (density = 1 g/ml). (2 points each) a. Dichloromethane (density = 1.33 g/ml): Top or Bottom b. Chloroform (density = 1.49 g/ml): Top or Bottom c. Diethyl ether (density = 0.706 g/ml): Top or Bottom...