You have 150 g of dextrose available and you need to compound a 20% solution. If you use the entire amount of dextrose, how many mL of 20% can you make?

Q: For in the solution part for c), do you mean 6.25%?

A: Alleles are the alternative forms of a gene that are located on the same locus of a homologous…

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: If a sample of beeswax is found to have an acid number of 15.5 and saponification value of 71.2, the…

A: Given values: Saponification value = 71.2 Acid number = 15.5

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: 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: 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: Quinoline is isolated from a reaction mixture by the process of steam distillation. A mixture of…

A: The numerical is based on Raoult's Law Relative lowering of vapour pressure = mole fraction of…

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: 9. 3 μL of a 45 mM stock solution of a substrate is added to 8 mL of water. Calculate the following…

A: The objective of this question is to calculate various parameters related to a solution of a…

Q: Consider the titration of a 23.0-mL sample of 0.110 M HC2H3O3 (Ka=1.8\times 10−5) with 0.120 M…

A: volume of base required to reach equivalence point = (0.110 M x 23 ml)/0.120 M = 21.1ml of NaOH pH…

Q: You have a 0.5M stock solution of NaCl (formula weight: 58.4 g/mole), a 0.15M stock solution of…

A: Introduction   The standard concentration of the solution is usually determined in "M", which is…

Q: How much 10% dextrose solution and 20% dextrose solution should be mixed to prepare 1 l  12.5%…

A: Dextrose is an intravenous solution made up of a mixture of water and dextrose and used in low blood…

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: 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: 1) A solution is made by combining 128 mL of ethanol and 0.452 L of water. In this solution, what is…

A: Hi! Thanks for your question. But as you have posted multiple questions, I am answering only the…

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: If you were presented with 2 L of a 2 M sucrose stock solution, how many grams of sugar would be in…

A: Molarity: The moles of a solute per liter of a solution is called as molarity (M).

Q: How many mL of the 1 M glucose stock solution do you need to prepare 100 mL of a 1 mM glucose…

A: After dilution, the dilution factor represents the number of times the original concentrated stock…

Q: Demerol 25 mg IM is ordered stat. On hand is Demerol 100 mg per 2 ml. How many ml would you give?

A: Drug administration should be in right dose. So we have to use drug dose calculation formula for…

Q: If you have a sugar with a molecular weight of 315 g/mol, how many grams would you need to add to…

A: Given the molecular weight of sugar is 315g/mol. The volume of the solution is 487 mL and its…

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: A chemist is performing a precipitation titration on a 1.00 L sample containing an unknown…

A: Titration is the process, in which the exact concentration of the unknown solution can be used to…

Q: Benzalkonium chloride 17% w/v . . . . . qs           Water qs . . . . . . . . . . . . . . . . . . .…

A: Question is related to drug calculation.  Detailed solution in step 2.

Q: our patient drank the following liquids for breakfast;220 ml of orange juice,180 ml of milk and 150…

A: Nutrition is a process in which an organism uses food to support its life as food provides energy…

Q: You are asked to prepare 50 ml of a 1:100 rifampin (rifadin) and you have in stock a 1:20 rifampin…

A: Rifampin (Rifadin) is an antibiotic used to treat bacterial infections like leprosy, tuberculosis…

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: You want 235mL of a solution that consists of 10% BSA, 2.37mM KCl and 120µM EDTA.  You have stock…

A: BSA is a globular proteins which is a well studied proteins and used as standard protein molecule in…

Q: If equal portions of tretinoin gel, 0.1 % w/w and 0.4 % w/w are combined, what would be the…

A: The objective of the question is to find the resultant percentage strength when equal portions of…

Q: How many mg of agarose do you need to weigh out to make 75 ml 1.3% gel?

A: Agarose is a naturally occurring polymer that is extracted from seaweed and is made up of monomeric…

Q: How many grams of sodium chloride are needed to make 0.60L of 2.3M sodium chloride solution

A: The concentration of a solution is expressed in molarity. Molarity is defined as the number of moles…

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: A prescription came in for 34% salicylic acid. The pharmacy has 95% salicylic and 10% salicylic acid…

A: To prepare 500 Mg of 34% salicylic acid using 95% and 10% salicylic acid, you can use the following…