Q3: 6.02x1020 molecules of urea are present in 100mL of its solution. The concentration of the solution is: 1. 3. 0.02M 0.001 M 2. 4. 0.01M 0.1M

Q: An isotonic solution contains 25.76 grams of glucose (C6H12O6; molar mass = 180.2 g/mol) dissolved…

A: Isotonic solution means the solution which contains solute in the same concentration, as another…

Q: 71.  What mass of solid NaOH (97.0% NaOH by mass) is required to prepare 1.00 L of a 10.0% solution…

A: Given,Volume of solution = 1.00L. Density of 10.0% solution = 1.109g/mL.

Q: How many ml of 15% hydrochloric (HCl) acid solution must be mixed with a 5% hydrochloric (HCl) acid…

A: The question is based on the concept of solutions. we have to calculate volumes of the solution…

Q: Identify the solute that when added to 1 kg of water will produce a solution that will freeze. at…

A: Depression in freezing point (∆Tf) :-  When a non volatile solute is added to a pure solvent its…

Q: A solution is prepared using 0.125 g of glucose, , in enough water to make 250. g of total solution.…

A: In the question Following information given - Mass of the solute , glucose = 0.125 g Mass of the…

Q: How many grams of KNO3 is present in 125 g of solution that is 0.420 M KNO3? The density of the…

A:

Q: 3. Commercial concentrated aqueous ammonia is 28% NH3 by mass and has a density of 0.90 g/mL. What…

A:

Q: In a certain medical test designed to measure carbohydrate tolerance, an adult drinks 7 ounces of a…

A: Given values: Total amount of solution = 7 ounces Let the amount of 30% glucose solution be 'x'

Q: A KOH solution is prepared by dissolving 8.57 g of KOH in enough water to make 850 mL of KOH…

A:

Q: How much of a 2.0 M NaCl solution is needed to make 205.0 mL of 0.15 M NaCl solution?

A: The relation between molarity and volume of a particular solution at two different concentrations is…

Q: 1. What mass of the following chemicals is needed to make the solutions indicated? a. 1.0 liter of a…

A:

Q: A solution contains 25% by mass of HCl and a density of 1.08 g / ml. Which is the mass of water…

A: The concentration of the given HCl solution is given as - HCl = 25%  (w/w) Density of the solution =…

Q: A 400.0 mL solution contains 15.0 g of ethanol (C2H,O). What is the concentration (in M) of ethanol?…

A: “Since there are multiple questions and it is not mentioned that which one has to be solved so I am…

Q: solution? How many grams of H2S(aq) are needed to make 5.00 L of a 0.125 M H,S(a0) 13.63g O 21.3 g…

A: Given :- Molarity (M) = 0.125 Volume = 5 L Mass of the H2S (aq) we have to find out Molarity = it is…

Q: How many grams are needed to create 400.0mL of a 0.500M solution of sodium chloride (NaCI)? 11.7 g…

A: Molarity of the solution is equal to the number of moles of solute present in one liter of the…

Q: How many mL of a 1.0 M NaOH solution would be used to deliver 20 grams of NaOH?

A:

Q: Which solution contains the greater mass of glucose? a) 1.40 L of a 0.334 M glucose solution or…

A: Two questions for which, the solution containing greater mass of glucose is to be determined by…

Q: Concentrated HCl has density of 1.19 g/mL and concentration of 38% by mass. What is the molarity of…

A:

Q: An ammonia solution is 23% NH3 by mass and has a density of 0.92 g/mL at 20°C.  What is the molarity…

A:

Q: What is the concentration of an aqueous sodium sulfide solution that is prepared by dissolving 18.6…

A: Given, mass of Na2S = 18.6 g Volume of Solution = 2.00*102 mL 1000 mL = 1L 200 mL = 0.2 L  Molar…

Q: What is the concentration in molarity of an aqueous solution which contains 39.91% by mass propylene…

A:

Q: What is the concentration in molarity of an aqueous solution which contains 1.31% by mass ethylene…

A: Given: Mass percentage = 1.31% Molar mass of ethylene glycol = 62.07g/mol Density = 1.04g/mL

Q: What is the molarity of an 85.0-mL ethanol (C2H5OH) solution containing 1.77 g of ethanol?   What…

A: The answers to both questions are given as:

Q: 14. The concentration of the original unknown protein solution is determined to be 0.2173 mg/mL.…

A: Given, Concentration of the protein solution = 0.2173 mg/mL Concentration of the protein solution =…

Q: The density of a solution that is 20.0% HClO4 is 1.138 g/ml. Calclulate the molarity of the HClO4…

A: Molarity = Moles of soluteVolume of the solution in L

Q: Calculate the volume in ml of a 6.00 M HCI solution used to make 1250 ml of a 0.270 M solution.…

A: Since the 1250 mL of 0.270 M solution is made up using 6.00 M HCl solution

Q: A 67.0 mL67.0 mL aliquot of a 0.500 M0.500 M stock solution must be diluted to 0.100 M.0.100 M.…

A: Initial Volume (V1) = 67 ml = 0.067 L Initial Molarity (M1) = 0.5 M Final Molarity (M2) = 0.1 M…

Q: A solution is determined to be 0.560% acetic acid by mass. What is its molarity? (Assume the density…

A: The variety of concentrations depicting terms such as percent by mass, molarity etc are interrelated…

Q: An experiment in a general chemistry laboratory calls for a 2.00-M solution of HCl. How many mL of…

A: This problem is related to the preparation of dilute solution from the given stock solution.…

Q: 50.0 mL of a 6.0 M stock solution of K2SO4 is diluted to make a 2.0 M solution.  How many mL of…

A: Given data: Volume (V1) = 50.0 mL Molarity (M1) = 6.0 M Molarity (M2) = 2.0 M Volume (V2) = ?

Q: How many moles of solute particles are present in 1.43 mL of 0.447 M K2SO4?  When you have your…

A: Number of solute particles can be calculated from the volume and concentration.

Q: a stock sulfuric acid solution contains 98.0% of sulfuric acis and its density is 1.840 g/mL. how…

A: Since the mass percent of sulfuric acid is given 98 %  And mass % = mass of sulfuric acid X 100 /…

Q: Stock solution of HF is 49 % HF by mass and has a density of 1.17 g/mL.  What is the concentration…

A: The mass percent concentration of HF solution is = 49 % The density of the solution is = 1.17 g/mL…

Q: When 4.5 mL of a solute is dissolved into 25.0 mL of water, the volume of the solution becomes 29.5…

A: Given that volume of the solute = 4.5 mL volume of the solution = 29.5 mL