Which of the following images correctly illustrates how the soap molecules will orient themselves in respect to the lipid molecules and the water
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- A volumetric flask is made to prepare a certain chemical concentration through dilution for example if there is no volumetric flasks how can you prepare 0.2N or acetic acid from 1 N acetic acid stock solution.Which of the following is a hydroxyl fatty acid?a) Linoleic acidb) Palmitic acidc) Linolenic acidd) Cerebronic acidBelow is a general outline of a soap molecule. Indicate on the outline the area that is expectedto be hydrophobic and the area that is expected to be hydrophilic?
- In the EXPERIMENT PREPARATION OF POTASSIUM IODATE, SODIUM THIOSULFATE AND STARCH SOLUTION Why should starch solution be freshly prepared?Fill in the blank. The parentheses show the choices for the blank. Soap allows lipids to dissolve in water. Soap molecules have a fatty acid tail. This tail is hydrophobic and _______ (is attracted to lipid molecules, contains an amine group) Soap molecules also have a head that is ________ (hydrophilic, hydrophobic), which means it is attracted to water.Give and explain the principles of the following tests for lipids: Test for Surface Tension Formation of Insoluble Soap
- Show the chemical equations of the following lipid tests: (1) acrolein test, (2) saponification, (3) translucent test, and (4) emulsification.What will you observe when samples of these fats and oils are tested for unsaturation with bromine water? Refer to the table below.When doing a lab the tube has 0.5% starch and 25% sucrose/iodine in the beaker. Wouldn’t this be a hypotonic environment because the solution has a lower concentration then what’s in the tube?
- In your Amphipathic Home Lab, describe ach of these statements as true or false: Oil and water form an emulsion before the soap is added ____ Water molecules prefer to associate with each other than to associate with oil molecules ______ The milky mixture seen after the soap was added to the oil and water mixture and stirred is called an amphipathic compound _________ Soap dissolved in water forms micelles ______ Soap helps oil mix with water because both soap and oil are nonpolar ______If the following lipids are present: phosphatidylserine / phosphatidylcholine / sphingomyelin / triacylglycerol / and cholesterol ester are mixed and the mixture is separated by column technique. chromatography with silica gel in the column and then start Leach with a less polar solvent. The drought gradually increases the polarity of the less polar solvent. and gradually increasing the polarity of the solvent How are the lipids in the mixture in order to emerge from the column? along with explaining the reasons ..Figure 2.12 A pH scale. Here, red dots signify hydrogen ions (H+) and blue dots signify hydroxyl ions (OH). Also shown are the approximate pH values for some common solutions. This pH scale ranges from 0 (most acidic) to 14 (most basic). A change of one unit on the scale corresponds to a tenfold change in the amount of H+ ions. Photos, JupiterImages Corporation. Figure It Out: What is the approximate pH of cola?
