How would you prepare 250 mL of a 4.4% w/v KBr solution in water? Assume that a 250-mL volumetric flask is available.

Q: Terpin hydrate elixir should have _ mL of alcohol to make 250 mL elixir to ensure it will have 43%…

A: Given:: Volume of elixer = 250 ml  Strength of alcohol = 43% Volume of alcohol = ?

Q: Calculate oral dosage in teaspoons (tsp) of Tylenol suspension liquid (32.0 mg/mL) for a 27.5 lb…

A: Given:-Child weight= 27.5 lb               Recommended dosage= 13.0 mg/kg               Tylenol…

Q: o what volume would you dilute 150.0 mL of a 0.4000 M NaOH solution to obtain a 0.2500 M solution?…

A: Calculate the number of moles of NaOH present in the 0.4 M solution. Number of moles of NaOH =…

Q: How would you prepare a 50.0 mL portion of 2.50 M sodium hydroxide solution? (b) The stock room has…

A: Molarity is defined as number of solute present in 1000 ml of solution . Mole=…

Q: 2 It is a type of solution with low concentrations ? Select one: a. concentrated b. unsaturated…

A: Type of solutions: a) Concentrated solution : the  solution having higher concentration of solutes…

Q: A student wants 51.0 mL of a 1.50% saltwater solution. They only have a 5.00% stock solution. How…

A: The student require 51.0 ml of solution with concentration 1.5%. The concentration of stock is 5%…

Q: how would you prepare 9 liters of a 50% dye solution beginning with a 60% stock dye solution?

A: Given :-  Initial concentration or concentration of stock solution = 60%  Final concentration or…

Q: How many mL of ethanol are contained in a 40.-mL portion of a mouthwash that has 6.2% (v/v) of…

A: We have to calculate the volume of ethanol.

Q: physican has ordered 37.5 mg of a paticular drug over 15 minutes. If the drug was avaialbe as a 2.5…

A: A physician has ordered 37.5 mg drug over 15 min. that is over 900 sec. From that we can calculate…

Q: What volume of water would you add to 15.0 mL of 12 M HCl to make it to 6.0 M solution?   * 10 mL…

A: Given: Initial concentration of solution, M1 = 12 M The initial volume of solution, V1 =15.0 mL…

Q: 3 Ways to separate Alcohol, water, diesel and blood and its step by step procedure

A: 1) Centrifugation- Blood is mostly water but the platelets and cells in blood can be separated by…

Q: 2. If the patient is to be given 120 mcg of levothyroxine via IV infusion and the vial contains 0.4…

A: There are various units of mass used for any system-  1- microgram = mcg 2- milligram = mg 3- gram =…

Q: What volume of water would you add to 15.0 mL of 12 M HCl to make it to 6.0 M solution? a.100 mL…

A:

Q: How many mL of ethanol are contained in an 8.0-oz bottle of hand sanitizer that has a concentration…

A: The given information is that, 62% (v/v) indicates that 100 ml of hand sanitizer consists of 62 ml…

Q: The doctor's order is to give 200 mg Sulfisosxazole . The bottle contains 125mg / 5 ml . How much…

A: Given: Bottle = 125 mg/5 ml Total amount of Sulfisosxazole is to be given = 200 mg

Q: How many grams of NaOH are needed to make 750 mL of a 2.5% (w/v) solution?

A:

Q: How many milliliters of 50% w/v solution should be mixed with 2175 mL of 10% w/v solution to make a…

A:

Q: What volume of purified water, in milliliters, do you need to add to 5 mL promethazine 2 mg/mL…

A:

Q: How much sugar (C12H22O11) in grams must be added to 450 mL water to make a 20% sugar solution?

A: Density of water = 1 g/mL Mass of water = volume x density                             = 450 x 1=…

Q: How many mL concentration 15 M sulfuric acid solution will I need to make 500 mL of 1.5 diluted…

A:

Q: Assuming that 1 mL of potassium permanganate stock solution provides 1 mg/L dosage in a 2 L jar,…

A: Concentration of diluted KMnO4 solution (C1) = 1mg/L Volume of dilution (V1) = 2L concentration of…

Q: What mass of solvent will it take to make 260 g of a 7.5% w / w solution

A: Given :-  mass of solution = 260 g  % w/w = 7.5 %   To calculate :-  mass of solvent

Q: How many grams of ammonium chloride must be down to 150 mL of water to make a saturated solution at…

A: Mass of ammonium chloride = Volume x Concentration

Q: A commercial bleaching solution contains 13.6% (v/v) of sodium hypochlorite, NaOCl. What is the…

A: We have to calculate the volume of NaOCl.

Q: A 551 ml container of 70% (v/v) Isopropanol (rubbing alcohol) contains how many mL of isopropanol?…

A: The volume of isopropanol is to be calculated

Q: How much of the preservative is needed to prepare a 120-mL preparation of Aluminum hydroxide gel…

A:

Q: how you would make 500 mL of a 3.5% (v/v) ethanol solution (m.w. = 46.1 g/mol).

A:

Q: Look at the diagram below of a ten-fold serial dilution. Serial Dilution 9 mL stock solution 1 mL…

A: Serial dilution: It is a sequence of dilution of a substance in the solution and the dilution factor…

Q: If 250 mL of a 12% solution is diluted to 1 L, what will be the percentage strength?   a 1.2%   b…

A: Dilution of the solution: When we dilute a concentrated solution with pure water, the amount of…

Q: How many grams of vitamin C (C6H8O6) would be contained in 25.0 mL of a 2.4 M solution?

A:

Q: ration of a diluted H2SO4 solution that has a volume of 0.50 L using 2 mL of a 5.50 M stock…

A: In chemical laboratories, Strong chemical solutions are not used as such. They are diluted to lower…

Q: A solution is made containing 20.8 grams of phenol )C6H5OH) and 425 grams of ethanol (C2H5OH).…

A: Mass percentage = grams of solute /grams of solute +grams of solvent *100

Q: You receive an order for 500 mL of 3% dextrose solution. You have available 15% dextrose, 1000 mL.…

A:

Q: How many milliliters of a 1:50 w/v boric acid solution can be prepared from 500 mL of a 12% w/v…

A: We have to predict the volume of Solution

Q: mL Alcohol 85% ad 240 mL Sig. For the scalp. How milliliters each of 95% v/v alcohol and water…

A: The questions asks the volume of alcohol and water to be mixed in order to prepare 240 ml of 85%…

Q: How much sterile water will you have to add to the concentrated solution you calculated from problem…

A: The question is based on the concept of solutions.   Molarity is a method of expressing…

Q: You have a stock of 5.0 M NaCl. If you want to make 300.0 mL of .150 M NaCl, how many milliliters of…

A: M1= 5.0 M V1=300.0mL M2=0.150M V2=?

Q: How would a technician make 50 mL of a 2% w/v NaCl solution?

A: We have to make 2% w/v NaCl solution.  Volume of solution should be 50 mL.  To make this solution we…

Q: A solution contains 11 ppb of toluene. This means that ___. 1 g of solution contains 11 ×…

A: Ppb is the concentration measurement and is named as parts per billion. It measures the…

Q: How much ml of ethanol is needed to make 2000ml of an aqueous 15% (v/v) solution? A. 3000 mL B. 300…

A: Given: Volume of solution = 2000 mL v/v% of aqueous solution = 15%

Q: explain how you would prepare 500ml of a 40.0% v/v alchohol solution

A: %V/V = Volume of solutevolume of solution ×100 Hence for 40% V/V solution,  40  =Volume of solute…

Q: A 1.00 L solution is prepared using 167.96 grams of NaF. What is the molarity of a 500 mL solution…

A: Given data: The volume of the prepared solution=1.00 L. The mass of NaF=167.96 g. The volume of…

Q: How many milliliters of concentrated nitric acid, 16 M HNO3, will you use to prepare 7.50 x 102 mL…

A: M1V1 = M2V2 Where, M1 = initial molarity; M2 = final molarity; V1 = initial volume; V2 = final…

Q: How many liters of a 0.88 M solution can be made with 25.5 grams of lithium fluoride?    How many…

A:

Q: How many grams of Mg(OH)2 are present in 55.0 mL of a 3.50 M solution? [Mg(OH)2 = 58.3 g/mol]

A:

Q: You want to make a stock solution that is 12.2 M K*. You have potassium chromate salt (MM=194…

A: Molarity of the K+ ions solution to be prepare M1 = 12.2 M Molar mass of Potassium chromate (K2CrO4…

Q: 5. How many milligrams of H3BO3 should be used in compounding the following prescription? Rx…

A:

Q: Answer the following questions:  How many grams of sucrose (C12H22O11) are present in 50.0 mL of a…

A: Concentration of the diluted solution can be found out using,M1V1 = M2V2 where M1 and M2 are the…

Q: Calculate the total volume, in milliliters, of clindamycin 600 mg/4 mL solution needed to prepare…

A:

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.