Your supervisor asks to make 350 mL of a 0.75% (w/v) starch solution using a 5% (w/v) stock solution. You have calcuated how much stock solution you need. But, how much water (in mL) will you need to add to the stock to achieve the correct final concentration?

Q: A 2.5mg/ml solution of ampicillin is available for use, what volume would youadd to 200ml of LB…

A: Microbiology is the branch of biology that deals with study of organisms that are too small to be…

Q: in the data given,  using salometer, water and salt is being combined with that the results showed…

A: Introduction: Distilled water is water that has many of its impurities removed through distillation.…

Q: Based on the information given, what separation technique(s) is/are most likely feasible? Please…

A: The selective boiling and subsequent condensation of a part in a liquid mixture is referred to as…

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: How much of a 10x buffer should be added to 900ml of water to make a 1x solution?

A: In this question, we are given with- 1. Concentration of stock solution= 10X 2. Required…

Q: Louie performed paper chromatography to identify which among the four available reference mixtures -…

A: The technique of separating substances based on the differential migration across sheets of paper is…

Q: How many ml 2M NaOH would it take to neutralize 20 ml of 0.5M HCI?

A: Given: Concentration of NaOH , M1 = 2 M Volume of NaOH, V1 =? Concentration of HCl, M2 = 0.5 M…

Q: You receive a prescription for Epanutin® Suspension. The patient normally takes 150mg daily in…

A: Phenytoin: Phenytoin is an anticonvulsant medication used to treat seizures, epilepsy, and certain…

Q: To prepare 250 ml of a 1:2,500 solution a technician must weigh

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Q: How do you prepare a 100mL of 0.1 M phosphate buffer? From the anterior buffer, how do you make…

A: Introduction  When modest amounts of acid or base are given to a solution, the pH does not alter as…

Q: 4) Fill in the table below for tubes 2-7 in red text. Table 1. Mixing table for BPB [Starting…

A: A serial dilution is prepared by making a series of dilution with a specific dilution that remains…

Q: If I want to make a 100mL buffer that has 2% SDS, 100mM tris pH 8, 10mM EDTA, and proteinase K…

A: Introduction: Buffer is defined as a solution that resists change in pH on the addition of acid or…

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: You are instructed to perform the following three serial dilutions of a salt solution: 1:8, followed…

A: Dilution = initial volume / final volume Total dilution = multiply all the previous dilutions

Q: volumetric flask made of Pyrex glass is calibrated at 20 °C.It is filled to the 100 mL mark with 35…

A: Original volume is 100 mL. Delta T = 20 - 35 = -15°C After cooling to 20 °C, the volume is Vfinal=…

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: You have a 1000X stock solution of sodium chloride (NaCl). The concentration of NaCl in the stock…

A: Sodium chloride (NaCl) is a salt made of an equal composition of sodium and chloride ions. NaCl is…

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: How much active ingredient in 20 cc of a 15% solution?

A: DISCLAIMER: Since you have asked multiple questions, we have solved the first question for you. If…

Q: The chart below represents the results (absorbance readings) of your Bradford Assay. Use the data…

A: The Bradford protein assay is a quick and accurate spectroscopic analytical procedure used to…

Q: a)Determine the amount of X (in gram) in order to prepare 100 mL of 50 mM stock solution of X. Show…

A: In this question, we are given: a) Molecular weight of X= 225 Molarity of stock solution= 50 mM…

Q: Joshua needs 150mL of 1X TBE buffer. The stock of TBE Buffer is 15X. How much 15X TBE buffer should…

A: Cells constitute all the living organisms. These cells are the building blocks of life. Cells also…

Q: The prescriber ordered oxacillin 500mg IM q6h.  The instructions on the 2g vial state to…

A: The nurses administer the drugs to the patient, and thus it is very much necessary for the nurses to…

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: How will you dilute 100 μl of 25 mg/ml BSA into a final concentration of 2 mg/ml BSA?

A: BSA stands for bovine serum albumin. It has several applications in laboratories. In a microbial…

Q: Refer to the chromatograph (Figure 1) below and answer the questions that follow: What is the…

A: Affinity chromatography is a separation technique that takes advantage of the ligand specificity…

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: A vial containing 400 mg hydrocortisone sodium succinate powder for injection is to be reconstituted…

A: GIVEN: Amount of hydrocortisone sodium succinate powder for injection = 400 mg Volume of injection =…

Q: can you show how to calculate the amount of two components for the required volume of a buffer with…

A: Given Values: Concentration of Tris = 0.25 M Concentration of Glycine = 1.92 M Concentration of SDS…

Q: What is the concentration of a 50% solution after completing three 1:10 serial dilutions?

A: Serial dilution is the process that reduces the concentration of a solution in an organised manner.…

Q: The commercial hydrogenation of vegetable oil often leads to a trans acid. Explain this statement.

A: Fat hydrogenation is the process of combining fat typically vegetable oils with hydrogen in order to…

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: To make 100 ml 0.3% NP-40 solution for FISH post washing, how many ul  100% NP-40 solution is…

A: Data given is, C1 = 100, C2 = 0.3, V2 = 100ML, V1 = ? C1= Initial concentration;            C2 =…

Q: Using the formula V₁D₁ = V₂D2, what volume of a 1/100 (10-2) dilution would you need to produce 100…

A: Stock solutions refer to the high-concentration solutions used for dilution. A stock may have a…

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: For his experiment, Brian needs to prepare 30 plates (use maximum volume), 15 slants (small test…

A: In order for the microorganisms to survive and grow under laboratory conditions we need to provide…

Q: same test, calculate the concentration of this test ? Concentration of standard

A: Given, Absorbance of urea = 0.335 Absorbance of standard = 0.214 Concentration of standard = 50…

Q: Calculate the appropriate volume (in µL) of 3X loading buffer that should be added to 24.0 µL of a…

A: Dilution factor (DF) can be expressed both as the ratio of concentrations and as ratio of volumes.…

Q: A 510 mL IV bag contains a 25% dextrose solution. How much of the original solution must be replaced…

A: During IV transfusion and medicine administration, the concentration of the drug in a solution must…

Q: A patient is prescribed 15mmol of potassium chloride injection. The ampoule contains 20mmol in 10ml.…

A: Given data    A 10 ml ampule contains = 20 mmol

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: What is the final concentration if 239mL of a 3.9M glucose solution is diluted to a volume of 842mL?

A: To solve this we will use the formula - M1xV1= M2xV2

Q: You have a 6 M solution of stock A. You do the following serial dilutions: Add 1 ml of stock A to…

A: Dilution is calculated by stock volume to the final volume.  Solution = Stock volume/ (stock volume+…