Answered: In polarimetry when the lactic acid…

In polarimetry when the lactic acid measured was contaminated with glycerol what happens to the measured optical rotation? WIll it increase, decrease or have no effect

Introduction to General, Organic and Biochemistry

11th Edition

ISBN:9781285869759

Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres

Publisher:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres

Chapter21: Lipids

Section: Chapter Questions

Problem 21.18P

See similar textbooks

Related questions

Q: true or false and why is false 4 Paramagnetic substances are those which contain unpaired electrons…

A: We have find out true or false.

Q: The amino acid (S)-alanine has the physical characteristics listed under the structure. ÇOOH a. What…

A: Stereoisomers are defined as the compound having the same molecular formula and the connectivity…

Q: when amino acids were separated and located by locating agent, it was found that one of the amino…

A: The formula required to calculate the Rf is as follows,

Q: Which wool fiber properties would be changed if the fiber had β-keratin instead of α-keratin

A: Which wool fiber properties would be changed if the fiber had β-keratin instead of α-keratin?

Q: What is the principle behind the isolation of albumin?

A: Albumin is the water soluble protein. It is isolated by salting out techniques.The principles…

Q: How would the albumin be agitated in a plastic bowl?

A: Fat interferes with the formation of a good foam—and fat clings to plastic/ plastic bowl. No matter…

Q: 2. What is the relationship between (S)-proline and (R)-proline? What about…

A: Since you have asked multiple questions, we will solve the first question for you. if you want any…

Q: True or False 1. Mutarotation affects the reducing property of carbohydrates. 2. Anthrone test can…

A: General chemistry of carbohydrates

Q: hich of the following sweet molecule and its classification is correct? cyclamate: artificial…

A: Given : We have to choose which of the following is true.

Q: "A saturated fatty acid sample has a high boiling point. A triacylglycerol is composed of glycerol…

A: A saturated fatty acid have dense packing because of long hydrophobic chain so they have higher…

Q: Is TMA a volatile compound or a biogenic amine? (explain further) Is the measurement of TMA a…

A: 1. Answer - TMA is not an amino acid since there is no acidic group in its structure but it is a…

Q: Pyranose/furanose representation Ring structures Complete Fisher Haworth name Projection…

Q: Calculate both saponification and iodine value? Fatty acid Molecular Formula 16:0 C16H32O2 13.2 16:1…

A: The saponification value is the number of milligrams of potassium hydroxide required to neutralize…

Q: To make a soothing chest rub, blend 1 drop each of copaiba oleoresin, black pepper and coriander to…

A: Chest rub is useful for moisturizing and soothing the skin.

Q: What is the Chemical shift, multiplicity, and integration for the H-NMR signals?

A: In NMR chemical shift is very much important from where we can get the idea about the mo of protons…

Q: Will alanine result to positive or negative in ninhydrin test

A: The question is based on the concept of chemical tests. we have to establish whether alanine shows…

Q: Question 1 Methylated samples hydrolysate samples can be analyzed using a gas chromatography. O True…

A: Chromatography is a technique used for seperate the reaction mixture.

Q: If a commercial lipid produced a red kreis test it mean the lipid is A. Nonsaponifiable B. Rancid C.…

A: If a commercial lipid produced a red kreis test it mean the lipid is

Q: Using the generated linear equation: y = 0.7802457x - 0.0127078, calculate the concentration of free…

A: Given: y = 0.7802457x + 0.0127078 for linear curve of absorbance (Please note that the intercept is…

Q: What is plane of symmetry and axis of symmetry?

A: Plane of symmetry: It is a plane of reflection through which an identical copy of the original…

Q: Why is it important that the chemist separate the two enantiomers and test each for its biological…

A: Enantiomers exhibits similar chemical and physical properties.

Q: Ph3P F + G C11H14

Q: The specific rotation of a-d-glucose is +112.2. Q.) When a-d-glucose is dissolved in water, the…

A: Interpretation: The specific rotation of α-D-glucose is +122.2. When α-D-glucose is dissolved in…

Q: 4 -3 .2 十 Ala Gly Phe

A: Rf factor is determined by, Rf= Distance travelled by solute/(distance travelled by solvent)

Q: If 1 million units of penicillin is reconstituted with 120cc of diluent to produce 125cc of…

A: As per the dilution equation, c1V1=c2V2

Q: determine the sterocenters and R/S

A: Rules for R/S configuration: Rule 1: Start by looking at the atoms that are directly connected to…

Q: compound that will have a positive result to the test, if there is. 8. What is one chemical test…

A: I have given two test for distinguished between maltose and sucrose

Q: Dr. Josh Axe states that the number one essential oil you can use for any type of nerve degeneration…

A: The essential oils which is used In nerve degeneration is given below.

Q: Disulfide linkages: A. are covalent bonds. B. are a type of electrostatic interaction.…

A: Disulfide linkages:

Q: When the relaxivity of a Gd-based magnetic resonance agent is high, this means that slight changes…

A: The given statement is False. Slight changes in Gd concentration will result into big changes in…

Q: The aglycone portion of salicin is a sugar moiety such as glucose or rhamnose. A. True B. False

Q: Use any spectroscopic method to attain qualitative and quantitative information on adulterated palm…

A: The adulteration of palm oil with many fat soluble azo dyes that are difficult to separate from the…

Q: What will happen when the polyacrylamide gel is not oriented in the negative direction?

A: Polyacrylamide abbreviated as PAM is a polymer (-CH2CHCONH2-) formed from acrylamide subunits. It…

Q: Is DL-Homocysteine soluble in ether?

A: According to the like dissolves like principle, polar solute exhibit high solubility in polar…

Q: Fehlings Test: Reagent’s Composition Observations: Test Sample Observations Water Glucose…

Q: What type of interaction holds a-helices and B-pleated sheets together? A) dispersion forces B)…

Q: Use an asterisk to identify the stereogenic center in the segment of phosphatidylethanolamine shown…

A: Given, Structure = Phosphatidylethanolamine Identification the stereogenic center = ?

Q: what is the N factor of disodium ethylenediaminetetraacetate (C10H14N2Na2O8)?

A: N factor is defined as the number of H+ ions replaceable by 1 mole of acid in a reaction i.e.., in…

Q: An unknown carbohydrate solution tested (+) with Molisch’s reagent. It formed a red precipitate…

A: The carbohydrate could be RIBOSE

Q: Starch Glycogen Lysate 50 Lysate Volume (µL) of hydrolysate Volume of deionised water (µL)…

A: concentration is defined as moles of solute upon the volume of solution concentration c =moles…

Q: True or false a) Kappa- and Iota- carrageenans contain 3,6-anhydro-a-D-galactopyranosyl residues.…

A: Carragenan used in food additives to thicken the food.Kappa carrageenan Found in red seaweed is…

Q: If a commercial lipid produced a red Kreis test it means that the lipid is Group of answer choices…

A: Lipids , fats or oils when exposed in open environment for long time , then they absorb atmospheric…

Q: Mannose exists in aqueous solution as a mixture of a-d-mannopyranose and b-d-mannopyranose. Draw…

Q: Он HN R Sphingomyelin Phosphocholine ceramide Sphingolipid All are correct

Q: For questions 8 through 10, fill in constrict or dilate, then ↑ and ↓ arrows. 8.Acetylcholine will…

A: 8.Acetylcholine will constrict bronchioles increase resistance decrease air flow

Q: Topic: extraction of Flavonoid glycosides and assessment of antioxidant What is the indication of…

A: Iodine test for confirmation of presence of unsaturation.

Q: How are emulsions stabilized?

A: When a surfactant adsorbs on the interface the interfacial tension between the two phases decreases.…

Q: How to show the cyclization of frontalin

A: The reaction through which a compound is converted to an aromatic compound through several steps is…

Q: C17H29COOH linolenic acid non-saponifiable w-3 fatty acid All are correct

Concept explainers

Micelles and Biological Membrane

Micelles are the type of lipid molecules that organize themselves in spherical shape in aqueous solutions. The production of the micelle is a reply to the amphipathic behavior of fatty acids. It means that they consist of both hydrophobic regions and hydrophilic regions. In micelles, polar head groups (hydrophilic groups) produce an outer layer associated with water whereas nonpolar tails (hydrophobic groups) are organized in the interior.

Question

In polarimetry when the lactic acid measured was contaminated with glycerol what happens to the measured optical rotation? WIll it increase, decrease or have no effect?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

In polarimetry when lactic acid measured was contaminated with glycerol, what happens to the measured optical rotation. Will it increase, decrease, or no change?
What is plane of symmetry and axis of symmetry?
Solution Concentration of FeSCN2+ (M) Absorbance1 0.0000491 0.3112 0.0000818 0.5763 0.000115 0.7554 0.000152 0.9075 0.000196 1.185 Solution Concentration of FeSCN2+ (M) Absorbance 1 0.0000491 0.311 2 0.0000818 0.576 3 0.000115 0.755 4 0.000152 0.907 5 0.000196 1.185 A series of aqueous solutions of FeSCN2+ of different concentrations were prepared, and the absorbance of each was measured at a wavelength of 455 nm. Use Excel or Google Sheets to prepare a useful graph of the data (given below) that could be used to determine the concentration of an unknown solution from its absorbance. Ensure your graph is properly formatted and labeled. Click the…
Compare and contrast the effect of strong hydrochloric acid on Albumin, casein and gelatin
Explain the roles of acid, sugar and Ca2+ in pectin gel formation.
preparation of RAMP and SAMP auxillaries
Determination of Sterols in Dried Mushrooms Find the balanced equation: Saponification: 10 mg or 0.010 g (Cholesteryl Stearate) + 3 mL or 6.39 g of NaOH → Stearic Acid + Cholesteryl Sodium Carboxylate Trimethylsilylation: Stearic Acid + 0.20 mL of TSIM → Trimethylsilyl Stearate + Any by products or Impurities
Draw formulas that illustrate the hydrogen bonding that may exist between two polyamidemolecules after the fibers have been “cold-drawn.” (One polyamide molecule is drawn below.).
Separation of Amino Acids by Thin Layer Chromatography Lab Questions. Please see photos and answer the questions relating to the images from #10. Thank you!
Draw a three-dimensional structure for the attached steroid.
Methylated samples hydrolysate samples can be analyzed using a gas chromatography. True False
A researcher wishes to obtain a glycoside (an organic compound) from an aqueous plant extract using the solvent extraction technique. She therefore performs the following steps: Step 1: An aqueous solution (100 mL) containing 7 g of the glycoside was shaken with 50 mL of ethyl acetate. Step 2: The resulting aqueous layer from Step 1 was further shaken with 50 mL of dichloromethane. Given that: KD for the glycoside in ethyl acetate-water = 0.8 KD for the glycoside in dichloromethane-water = 0.9 (i)Calculate the total mass of glycoside extracted. (ii)If the molar mass of the glycoside = 784.3 g/mol, calculate the molar concentration of the glycoside remaining in the aqueous layer after each extraction.