Lactic acid Salicylic acid 4 g 5 g Trichloroacetic acid Flexible collodion qs ad Sig: wart remover. Use as directed. a. Flexible collodion contains 20% w/w camphor and 30% w/w castor oil. How many grams of each would be contained in 100 g of the mixture? b. The specific gravity of castor oil is 0.955. How many milliliters of the oil are contained in 100 g of the mixture? 28 100 g

Lactic acid Salicylic acid 4 g 5 g Trichloroacetic acid Flexible collodion qs ad Sig: wart remover. Use as directed. a. Flexible collodion contains 20% w/w camphor and 30% w/w castor oil. How many grams of each would be contained in 100 g of the mixture? b. The specific gravity of castor oil is 0.955. How many milliliters of the oil are contained in 100 g of the mixture? 28 100 g

Macroscale and Microscale Organic Experiments

7th Edition

ISBN:9781305577190

Author:Kenneth L. Williamson, Katherine M. Masters

Publisher:Kenneth L. Williamson, Katherine M. Masters

Chapter7: Extraction

Section: Chapter Questions

Problem 1Q

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49. R Lactic acid Salicylic acid Trichloroacetic acid Flexible collodion qs ad Sig: wart remover. Use as directed. 48 5 g 452 to an to 2 g 100 g a. Flexible collodion contains 20% w/w camphor and 30% w/w castor oil. How many grams of each would be contained in 100 g of the mixture? b. The specific gravity of castor oil is 0.955. How many milliliters of the oil are contained in 100 g of the mixture? c. If the specific gravity of the mixture is 0.781, what are the percent w/v concentrations of lactic acid, salicylic acid, and trichloroacetic acid in the mixture?
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Q. Determination of hardness by Clark's method.
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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?
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Q.2: Write the Separation of heavy metals using solvent extraction technique.