If you have an absorbance of 2.0 mL of stock dye, what kind of a dilution is needed to get it to 1.0? How do you go about this dilution and how do you calculate?

Q: As shown in the image below, 10 µl of a stock solution (tube #1) are serially diluted into 0.990 ml…

A: Introduction Dilution is the process of lowering the concentration of a solute in a solution by…

Q: How do you measure the amount of µmoles of a substance from absorbance? If the absorbance is 0.019,…

A: The objective of this question is to calculate the amount of micromoles of a substance from its…

Q: The two most abundant pigments in the chromatography results were carotene and Xanthophyll. What…

A: A photosynthetic pigment is a pigment which is found in green plants and do not  absorb all the…

Q: A pharmacist needs an IV which is 8% (w/v) dextrose in water. How many cc of pure sterile water…

A: Introduction:-  We have been given initial volume as 500cc which means 500ml of D10W ( 10%)  and we…

Q: What is the final dilution factor if you do five a) 0.625 b) 3.1x10^6 c) 6x10^-6 d) 2.67x10^7 e)…

A: Serial dilution is a technique used to create a series of dilutions from a concentrated stock…

Q: What are the underlying physical principles of paper chromatography? What is spectrophotometry, the…

A: Analysis of different compounds quantitatively and qualitatively is an important aspect of research…

Q: Given an 8 M potassium chloride stock solution, explain whether it is possible to perform a dilution…

A: The dissolution of one mole of a compound or solute in a solution with a total volume of one litre…

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: Can you please give me a little more detail on finding Ki? Where did the values come from? 0.23,…

A: Parameters such as Km and Vmax are used for comparing enzyme activities. If we know the initial rate…

Q: constructing

A: NORMALITY ASSUMPTION : The normality is a property of random variable that is distributed according…

Q: Prepare a standard tube that contains 0.2 mL of 2.5 mM lysine. To this tube, add 0.1 mL of the…

A: Final concentration can be calculated from the formula C1V1=C2V2 Where C1= initial concentration V1=…

Q: A pharmacist prepares 80 mL of an isotonic solution of 1.1 %w/v Lidocaine HCl (E-value 0.2). To…

A: The ability of a solvent to cause cells to shrink or swell is referred to as tonicity. A…

Q: When conducting a flame test for sodium iodide, is the result positive or negative?

A: An ionic compound is one that is formed between a metal or metalloid and a non-metal. A Flame test…

Q: The aliquot method was used to obtain 8 mg of a drug with a pr

A: Introduction:- the amount of the drug that is weighed that is within the degree of accuracy that…

Q: The data from thin layer chromatographic separation of analgesics showed ibuprofen distance to be…

A: Ibuprofen is solute here Distance travelled by Ibuprofen = 0.752 mm Distance travelled by solvent =…

Q: You wish to quantify your favourite compound in an experimental solution using spectrophotometry.…

A: Spectrophotometry is  a technique to measure the light absorption by a substance. It is classified…

Q: * You can keep extra decimal places through most of this problem, but round your final estimate to…

A: Spectrophotometry is  a technique to measure the light absorption by a substance. It is classified…

Q: You have a stock solution of 40% hydrogen peroxide. You need to make several dilutions for a…

A: Dilution of Hydrogen peroxide (H2O2): Dilution of Hydrogen peroxide (H2O2), is carried out by adding…

Q: Cyclophosphamide, after reconstitution, has a concentration of 20 mg/mL. The patient, who weighs 67…

A: Given-  Weight of patient - 67kg. Height of patient- 155cm.- 1.55m Cyclopohasphmide dose-…

Q: Sodium carbonate is a reagent that may be used to standardize acids in the same way that you have…

A: The objective of the question is to calculate the molarity of the sulfuric acid (H2SO4) solution…

Q: NEORAL oral solution contains 100 mg/mL of cyclosporine. If a pharmacist prepares 30 mL of an oral…

A: Dilution is a lab procedure by which the concentration of a solute in a solution is lowered by…

Q: A stock solution was diluted in two steps. In a first step, 0.5 ml was diluted with 9.6 mL buffer.…

A: Formula - Dilution = initial volume / final volume Final concentration = initial concentration ×…

Q: This is a question regarding spectrophotometry. Scenario: 0.1 mL of the unknown and 0.9 mL of…

A: When 0.1 ml of the unknown and 0.9 ml of the distill water are mixed. The dilution of the unknown =…

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: You have been asked to make up four 1.5% agarose gels at 30 ml each. Ethidium Bromide is to be added…

A: As you have asked multiple questions we are instructed to answer only one. Please repost the…

Q: You have been given a stock solution of dye that has a 10X concentration. You wish to make 750ul of…

A: Dilution is the process by which we can reduce the given concentration of the solution by adding…

Q: You are to prepare capsules that contain 0.125 g of a drug. You have four partial containers of…

A: The accuracy of the weighing is hundredth of a gram meaning the accuracy is 0.01 g. This scale can…

Q: A student performed the fractional distillation of a cyclohexane/toluene mixture. The refractive…

A: Here, it's given; Refractive index of distillate = 1.4301 Temperature = 22 degree celsius Mole% of…

Q: Calculate the appropriate volume (in µL) of 9X loading buffer that should be added to 46.0 µL of a…

A: Agarose gel electrophoresis is a laboratory technique that is used for the separation of nucleic…

Q: You have a 50X stock solution of TAE buffer, but you need 2 L of a 1X solution for electrophoresis.…

A: TAE buffer used in agarose gel electrophoresis for the seperation of DNA and RNA.