Determine the best solvent to differentiate the following

Q: A 500 mg vial of Kefzol needs to be reconstituted to a final concentration of 275 mg/mL. Assuming…

A: Answer.    Given data :----- Kefzol vial concentration  = 500 mg.  Desire concentration of kefzol =…

Q: Prepare 200 ml of a 0.125 M stock of NaCl from a 1 M concentrated stock solution of NaCl.

A: An artificial nutrient medium contains nutritional components like sugars, salts, amino acids, etc.…

Q: Propose a scheme to separate and isolate a mixture containing 4-aminobenzoate,…

A: Extraction is a particularly useful way of separating organic compounds if one molecule in the…

Q: What volume of 50 ppm nitrate stock solution would you use to prepare 50 ml of 1ppm, 2 ppm, 3 ppm…

A: Perhaps the most typical task in any analytical lab is preparing a solution with a known…

Q: You are told to prepare 200 mL of fixative solution containing 30% formaldehyde (vol/vol), 1X…

A: As we want 30% formaldehyde out of total 200ml so we take .3*200 = 60ml formaldehyde is taken.

Q: Write out the acid dissociation reaction for hydrochloric acid. Calculate the pH of a solution…

A: The dilution refers to a technique which involves increasing the volume of solvent which is usually…

Q: Complete the table for identification tests of amines and amides. What would be the…

A: Introduction Amines are the derivative of ammonia with one or more hydrogen atoms replaced by an…

Q: An amino acid mixture of phenylalanine, glycine and glutamic acid is to be separated by paper…

A: Paper chromatography is the analytical process by which mixtures of complex compounds such as amino…

Q: If you have 50 ml of pure stock formalin solution how many ml of diluent will you need? What is the…

A: Dilute formalin is used as a fixative in histological slides. The standard stock solution of…

Q: Determine the pH for the following solutions.  {H3O+}=2.4x10^-2 M

A: p in pH denotes negative of the logarithm(-log). So pH is negative logarithm of molarity of H pH…

Q: 439 mL of 0.270 M hydrochloric acid is exactly neutralized with 0.920 M potassium hydroxide…

A: Given Values: Volume of HCl = 439 ml The concentration of HCl = 0.270 M Concentration of NaOH =…

Q: You have 150 g of dextrose available and you need to compound a 20% solution. If you use the entire…

A: When we describe a concentration as a percentage without specifying the type of formula, we imply…

Q: Four known amino acids (AA) produce a chromatograph with Rf values as follows: AA1 =0.25, AA2 =0.66,…

A: According to the question, we need to identify the three amino acids that were present in the given…

Q: A 500 mL sample of a 0.100 M formate buffer, pH 3.75, is treated with 5 mL of 1.00 M KOH. What is…

A: The buffer solution consists of an acid and a salt of the conjugate base of the acid in a solution.…

Q: Arrange the following compounds in the increasing order of their boiling points :CH3CHO, CH3CH2OH,…

A: The boiling point (bp) is dependent on the intermolecular (IMF) forces present in the compound. The…

Q: Your supervisor asks to make 350 mL of a 0.75% (w/v) starch solution using a 5% (w/v) stock…

A: Given Values: Concentration of the starch stock solution = 5 % The volume of the final starch…

Q: You need to make 20 mL of a 1/100 (10-2) dilution of a crystal violet solution? How much diluting…

A: Crystal violet or gentian violet, also known as methyl violet 10B or hexamethyl pararosaniline…

Q: An amino acid mixture of phenylalanine, glycine and glutamic acid is to be separated by paper…

A: Paper chromatography is the analytical process by which mixtures of complex compounds such as amino…

Q: Complete the following precipitation reactions using balanced chemical equations:

A: The reaction in which the formation of insoluble salt when two soluble salts mix together in the…

Q: How many mL of 13x stock solution would you need to make 387 mL of 1x PBS. Report your answer to 1…

A: Concentration of a solution can be changed by the changing the amount of solvent added. The…

Q: Which of the following would you expect to elute first from a silica gel column eluted with hexane:…

A: Chromatography is a technique used for separating mixture in a laboratory. The mixture requires a…

Q: Given a BSA stock solution of 4mg/mL how would you prepare a 5 mL sample with a final concentration…

A: The following formula is used to find the volume required to prepare a 5 mL sample with a final…

Q: If 10g of salt was mixed in 1L water. What percent solution will this be.

A: According to the question,Mass of solute = 10 grams = 10gVolume of water = 1L = 1000 mili Liters…

Q: Lipids from an organic sample are extracted separately by column chromatography using the ff…

A: The objective of the question is to identify the possible lipids present in each eluate based on the…

Q: Indicator Low pH color • Transition pH range • High pH color • blue-violet green Gentian violet…

A: Methyl orange = yellow;   from reference table, color Red…<3.1-4.4<Yellow Methyl red = yellow;…

Q: If I am making 500ml of a solution with 0.625ml ITS, 0.0035ml Linoleic acid, 20ml Nu-serum, 0.75g…

A: A homogeneous mixture of two or more substances is referred to as a solution in chemistry when the…

Q: Assume that you have a stock solution of 10% SDS and you need to make 150 microliters of 0.5% SDS.…

A: Stock solution (SDS) = 10%Concentration of stock solution = 10g of SDS/ 100ml of water.Similarly,…

Q: Chlorophyll is the green pigment in the leaves of the plant, carotene imparts orange coloration…

A: Note: Since you have posted a question with multiple subparts, we will solve the first three…

Q: If skin cleaning solution is to be diluted 1 teaspoon to 64 ounces of water, how much water would…

A: GivenOne teaspoon of skin cleaning solution is diluted to 64 ounces of water.To findWater needed to…

Q: How much of a 5x buffer and how much water should be added to make 1 L of a 1x solution

A: For application, it's normally diluted to a "1X" concentration. A 5X concentrated solution, for…