Food dye Initial concentration (µM) | Initial volume (mL) Final concentration (µM) | Final volume (mL) Red 40 32 1.0 4.0 Yellow 5 40 3.0 20 Blue 1 8.0 V 1.0 8.0

Q: Give the COMPOSITION of the ff. Clearing agent: 1. Xylene 2.Toluene 3.Benzene

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: You are asked to prepare 20 mL of a 50 mg/mL drug dilution from a stog of 2 g/5 mL. How many…

A: Here, We need to calculate the milliliter of dilutant needed, for that purpose stock solution…

Q: Change in Weight Based on Concentration of Solution % Weight Change= Change F-I)/I X Solution…

A: A line graph is used to study the relationship between two different variables.

Q: McConkey Agar has been requested by a hospital that is investigating cases of suspected Salmonella…

A: Mcconkey agar is a media for gram negative bacteria.

Q: You were instructed to add 0.2 ml of kombucha to 9.8 ml of fresh tea, but instead added 2.0 ml of…

A: Dilution is defined as the ratio of stock volume to the final volume.  Here, final volume is the sum…

Q: Explain how the following will affect blood film or smear a. Humidity b. Temperature c. Speed d.…

A: White blood cells (WBCs, leucocytes), red blood cells (RBCs, erythrocytes), and platelets can all be…

Q: Why are we using this materials and centrifuging at 15000 rpm? Lipid peroxidation experiment:…

A: The oxidative degeneration of lipids refers to lipid peroxidation, where the electrons from the…

Q: solution is tested with three indicators and it has a pH of 9.8. Identify the colours of the…

A: pH 9.8 corresponds to basic pH range. Asked : To identify the colours of the given indicators at pH…

Q: If 0.1 ml is added to 99.9 ml medium, this results in a dilution of: Select one: а. 10-3 b. 10-4 С.…

A: Dilution is a process of decreasing the concentration of solute present in a solution. Dilution is…

Q: Our laboratory has a stock of 50 X TAE (Tris-Acetate) and the laboratory manager asks you to prepare…

A: Gel electrophoresis is a standard molecular biology procedure used for the separation of DNA by…

Q: Phytochemical test Physical description of extract: Color: Reddish brown Odor: Aromatic…

A: Phytochemical tests are the confirmatory tests used to detect the presence of different components…

Q: Ideal solvents for fat extraction should: a- penetrate sample particles readily, be in single…

A: Asked: Correct option regarding ideal solvent for fat extraction

Q: Our talented team of bakery mixologists have designed the perfect formula for making our award…

A: Part 1 The average rate of reaction is calculated by dividing the change in concentration of the…

Q: Why Nitrogen (or Argon) Gas Is Used as a Wine Preservative?

A: Argon is a highly stable, tasteless, and odourless chemical element. Argon is two and half times…

Q: FOOD MICROSCOPY: STARCH IDENTIFICATION  The following figures are the photomicrographs of the…

A: Starch is mainly found in a plant source, as starch is a storage material.

Q: Four process that  may be used to refine oil

A: Refining of oil is an industrial process that involves the conversion of crude oil into useful…

Q: All recipes are given per litre unless specified.   Lambda Broth (LB) Plates…

A: Give, The final volume (V2) = 5mL. The stock concentration of MgSO4 (C1)= 1M The desired…

Q: Sudan Test for Lipids Spot Color + or - Result Conclusions W. water C. cream K. coconut oil O. oil

A: DISCLAIMER: Since unknown solutions are not provided, the question with testing for unknowns is not…

Q: Complete the table below. For the function, identify the reagent if it is a stain, clearing agent,…

A: Answer : The function of reagents are :  1- FAA : fixative  2- ethyl alcohol : chemical solvent  3-…

Q: write true if the statement if correct and change the " " word/phrase to make it correct…

A: Chromatography is biochemical separation method for organic molecules or solutes of a compound…

Q: Can you give me an example of a specific medium in culture media and fill the information below.…

A: Selective media are those that prevent the growth of undesirable microorganisms while promoting the…

Q: which among the following will not produce a translucent spot when placed in a paper? a. none of…

A: Oils and fats are major components of our body and play a vital role in growth, maintenance of…

Q: Before using the top agar, maltose and MgSO4 must be added. Why are maltose and MgSO4 added after…

A: Given, The stock concentration of maltose is 20% Required concentration is ~0.2% Final  volume is…

Q: Calculate how much agarose is needed to make a 3% agarose gel in a volume of 150 ml 1x TAE buffer.

A: Introduction Agarose gel electrophoresis is a type of gel electrophoresis used in biochemistry,…

Q: bacteria (Mustard + 0.5% acetic acid or Mustard +1% acetic acid)

A: Different methods are used to prevent food from spoilage without changing its nutritional…

Q: which of the physiologic environments are sensational for biomaterials * mechanical strength,…

A: Biomaterials refer to a group of substances that are used to interact with biological systems. It is…

Q: Make 800 ml of a 1X stock of lemonade from a 6X concentrated stock of frozen concentrate.

A: The number in front of X is the n- fold dilution to prepare a 1X working solution. Formula for…

Q: 10mL of 1x solution from a 2x stock solution.

A: Dilution formula - C1V1 = C2V2 C1 = concentration of stock C2 = final concentration V1 = volume of…

Q: The stabilized ether contains a stadilizer-antioxidant: A) Methyl alcohol in a concentration of not…

A: Asked : Stabilized ether contains a stabilizer-antioxidant from the given options.

Q: You have a sample at 50 ng/ul and you would like to load 400ng of this sample on a lane of an…

A: Agarose gel electrophoresis is a technique to study the features of genetic material and proteins.…

Q: I need hand written solution

A: Global oxygen delivery (DO2) is the total amount of oxygen delivered to the tissues per minute,…

Q: separating gel. The separating gel is 12% acrylamide, 0.1% SDS, 0.375 M Tris-Cl, pH

A: Introduction SDS ( sodium dodcyl sulfate) is an anionic detergent which is negatively charged. And…

Q: Which technique is preferred in the separation of fatty acyl methyl esters from a mixture?a)…

A: Chromatography is defined as the physical method that can be used for separating different…

Q: 7. Short answer. Professor Forni has hired you as a research assistant and you need to make an X-gal…

A: Questions are more than one. Please repost the other questions separately. X-gal staining is central…

Q: Label three sets of eight microfuge tubes (1-8) and add the volumes of BSA stock solution (2 mg/ml)…

A: BSA is Bovine Serum Albumin and it is a serum albumin protein which is obtained from cows and often…

Q: A photo-sensitive organic reagent is exposed to 50 milliWatt ruby red laser light (694

A:

Q: There are 10 cups ranging from dH2O to 1% sucrose solution. If you drop a potato stick in each cup…

A: Introduction : In the given question potato sticks are kept in distilled water and increasing…

Q: What is the chemistry principle behind when (treatment: heavy cream) is subjected to CHILLED…

A: Here the experiment is basically the chilling effect on heavy cream and studing the pattern of its…

Q: If you mix heated pepsu) enzyme to abont 39 C with allbunin, then add biuret reagent, the expected…

A: Biuret test is a colorimetric method used to carryout in laboratory to determine the protein…

Q: How many mL of water should you add to get a concentration of 250mg/5mL?

A: The concentration of amoxicillin solution is 125 mg/5 mg. Hence, the amount of amoxicillin is:

Q: Give the color of the potato mixed with Lugol's iodine solution in these situations before exposure…

A: Lugol's iodine solution is a biological stain, chemical reagent, and used as a starch indicator.…

Q: Add milk to the test tube until the pH reaches 10 • Wait 5 minutes . Use iodine to test for starch…

A: Salivary amylase is an enzyme produced by the salivary glands and it is secreted into the mouth. It…

Q: Sulfamethoxazole is a type of sulfonamide antibiotic. Its absorbance ranges from 250-300 nm in a UV…

A: Sulfamethoxazole Sulfamethoxazole is a sulfonamide based bacteriostatic antibiotic, widely used to…

Q: In keeping a bottle of vegetable oil with no preservative, it must be coveredtightly and…

A: Triacylglycerols are lipids present in oils that have a glycerol backbone with the three hydroxyl…

Q: An IV bag contains 250 mL of a 5% mannitol solution. How many grams of mannitol are in the IV bag?

A: Mannitol - It is an osmotic diuretic which helps to produce urine by removing excess water fromthe…

Q: We have 50 X TAE (Tris-Acetate) stock in our laboratory and the laboratory manager asks you to…

A: TAE buffer is a common buffer used in DNA electrophoresis. It has a pH of 8.0 and is made up of Tris…

Q: Granulation of powder is an essential step in preparation of all types of tablets

A: Tablets are solid dosage unit. It consists of active substances in the powder form and can be…

Q: Please explain why is 70% ethanol used as an effective disinfecting solution in labs? Why not 95%…

A: Only 70% alcohol is effective as a disinfectant that is killing the microorganism on the surfaces.…

Q: Your pharmacy has on hand Tetracycline 250 mg/5 mL liquid. You receive a prescription for…

A: Q.1  Available dose of tetracycline - 250 mg / 5ml .  Prescribed dose = 500 mg QID  ( means 4 times…

Q: Suppose you have an initial chlorine concentration of 5%. Then out of that, you are told to prepare…

A: The concentration of a solution: The concentration of a solution is defined as the amount of the…