Samples subjected to a test were given. Determine the result of the samples subjected to the given test. Methyl salicylate in Spot Test Beeswax in Saponification Test Linseed oil in Iodine Test Tallow in Acrolein Test Perla in Formation of Soluble Salt Cholesterol in Salkowski Test
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Samples subjected to a test were given. Determine the result of the samples subjected to the given test.
- Methyl salicylate in Spot Test
- Beeswax in Saponification Test
- Linseed oil in Iodine Test
- Tallow in Acrolein Test
- Perla in Formation of Soluble Salt
- Cholesterol in Salkowski Test
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- A physician has ordered Coumadin 5 mg to be taken on Monday, Wednesday and Friday.On Tuesday, Thursday, Saturday and Sunday the patient is to receive 2.5 mg. How many milligrams will the patient take in 1 week? Need only handwritten solution only (not typed one).Give one effect of the following problems encountered in Histotechnique.a. Insufficient clearingb. Prolonged clearingc. Incomplete dehydrationd. Block not cooled rapidly enoughe. Incomplete fixationf. Knife is not clamped properlyg. Bubble or dirt is formed in embedding mediumh. Paraffin is impurei. Microtome set screw is loosej. Horizontal surface of block is not parallel to the knifeWhich of the following below will show a NEGATIVE result in Huble’s test? Group of answer choices Linoleic Acid Palmitic Acid Linolenic Acid Oleic Acid
- A student performs a separation by TLC on a silica get plate that results in three spots. Ared spot is measured 23 mm away from the original sample spot, a blue spot is 42 mmaway, and a yellow spot is 49 mm away. The distance from the original spot to where thesolvent stopped is 55 mm.a) Calculate the Rf value for each component in the mixture. (Show your work and reportthe correct number of significant figures.) b) The silica gel plate is polar. Rank the three components in the mixture from lowest tohighest polarity. Explain your answer.TEST ONE: When one uses Benedict’s reagent added to UNKNOWN samples taken and added (as a liquid) by a pipette (in our homes we call them eye-droppers) from each container into a labeled by number test tube. The seven labeled test tubes are then immersed into a beaker on a hot plate with warm water in it (called a water bath): Samples ONE TWO THREE FOUR FIVE SIX SEVEN All seven UNKNOWNS having Benedicts reagent added to them then change from transparent clear after to the same color as the Benedict’s reagent, when the blue colored reagent is added to them. They are all (all seven unknowns) now blue in color. Then the seven test tubes are immersed in a warm water bath. What is seen by you is that NO color change occurs initially when they are all immersed in warm water. THEN, over a five to ten-minute window of time as you watch the unknown test tube containing samples in the warm water bath, the test tubes containing unknowns ONE and FOUR change in color, to your eyes, to an…Draw the chemical reaction involved in each qualitative reactions of proteins. Ninhydrin test (ninhydrin solution) Xanthoproteic test (concentrated nitric acid) Millon’s test (Millon's reagent) Hopkins-Cole test (glyoxylic acid) Biuret test (Biuret solution)
- A certain amount of white solid was dissolved in enough water and gives a colorless solution. A portion of the solution was added with 15% solution of alpha-naphthol solution and a few drops of conc. H2SO4 forming a violet-colored ring. Another portion was added with drops of Seliwanoff’s reagent and showed no change after being warmed in a bath. Another portion was added with equal amounts of Fehling’s A and B reagent giving a red precipitate in a blue solution after warming in a bath. a) Cite an experimental result confirming that the solid is a carbohydrate b) Is the solid starch, fructose or glucose? Support your answer.Lead nitrate Stock Solution— Dissolve 159.8 mg of lead nitrate in 100 mL of water to which has been added 1 mL of nitric acid, then dilute with water to 1000 mL. Standard Lead Solution— On the day of use, dilute 10.0 mL of Lead Nitrate Stock Solution with water to 100.0 mL. Standard Preparation— Into a 50-mL color-comparison tube pipet 2 mL of Standard Lead Solution, and dilute with water to 40 mL, and mix. Test Preparation— Into a 50-mL color-comparison tube dissolve 1.0g ascorbic acid (mol wt 176.12) in 25 mL of water, dilute with water to 40 mL, and mix. Procedure— To each of the two tubes containing the Standard Preparation, the Test Preparation, add 2 mL of pH 3.5 Acetate Buffer, then add 1.2 mL of thioacetamide–glycerin base TS, dilute with water to 50 mL. Mix, allow to stand for 2 minutes, and view downward over a white surface. The color of the solution from the Test Preparation is not darker than that of the solution from the Standard Preparation. The colour is formed when…Chemical Test Just fill out Table 2 by writing “+” if the compound is soluble/miscible in the solvent. Otherwise, write “-“. Table 2. Data on the results of chemical tests for C4H6O2. Chemical Test Observations + or - Ninhydrin test no colored spots on filter paper iodoform test clear pale-yellow solution Br2/CH2Cl2 (dark) clear red-orange solution Molisch test turbid colorless solution Tollen’s Test clear, colorless solution