Five standard solutions of HBr are prepared by serial dilution in which, at each stage, 10.00 mL is diluted to 150.00 mL. Given that the concentration of the most dilute solution is 3.22 × 10−6 M, determine the concentration of the original HBr stock solution.

Q: The density of a 5.58 m aqueous acetic acid is 1.04 g∙mL –1. What is the molar concentration of this…

A: Given that, The density of a 5.58 m aqueous acetic acid is 1.04 g∙mL–1 The molar mass of acetic…

Q: You would like to make 3L of 0.10 M HCl(aq) solution from a stock solution with a concentration of…

A: • The values provided in the question are:-       i) Initial concentration of HCl solution, M1 =…

Q: 1.50 mol of NaOH in 1000. mL total volume of solution

A: Given that , the mol of sodium hydroxide, NaOH Solution = 1.50 mol And , volume of the solution =…

Q: What is the molarity of an aqueous solution prepared by adding 36.5 g of barium chloride to enough…

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

Q: The final volume of the solution is 284 mL. What is the concentration of CUSO4 in the final…

A:

Q: What is the concentration of an aqueous sucrose solution that is prepared by dissolving 171.2 g of…

A:

Q: What is the concentration of an aqueous caffeine solution that is prepared by dissolving 36.8 g of…

A: We are having 36.8 g of caffeine, C8H10N4O2 Molar mass of caffeine, C8H10N4O2  = (12*8 +…

Q: A 66.7 mL sample of 18.0 M sulfuric acid was diluted with enough water in a volumetric flask to make…

A: The solution is as follows:

Q: CHOICES ARE: X N M m n 1.) Which symbol expresses the amount of solute by the amount of solution?…

A: Here X = mole fraction  N = normality M = molarity m = molality  n = number of moles

Q: Solution BII. Calculate the volume of ~0.00100 M KMnO4 (Solution BI) needed to prepare 25.00 mL of ~…

A:

Q: Which concentration unit would be likely to be used for each situation? Making a standard NaOH (aq)…

A: Concentration units which are likely to be used for following given situations:

Q: What volume of the stock solution (Part A) would contain the number of moles present in the diluted…

A: A numerical problem based on molarity calculation, which is to be accomplished.

Q: A chemist adds 320.0mL of a 2.1 M calcium bromide (CaBr2) solution to a reaction flask. Calculate…

A: From the given volume and molarity of the solution, moles of calcium bromide can be calculated as

Q: Following the procedure, a student recorded the initial volume of NaOH in his buret as 1.43 mL. He…

A: Titrimetric analysis involves the determination of the volume of a solution of known concentration.…

Q: What mass of NaOH is contained in 290.0 mL of a 0.470 M sodium hydroxide solution? Mass = ____ g

A: Given data: Volume of NaOH = 290.0 mL Molecular weight of NaOH = 40 g/mole Molarity = 0.470 M

Q: This question has two parts: A student is trying to prepare 500. mL of 6.0 M sodium hydroxide, NaOH,…

A: molarity =w/M ×1000/v in ml W=weight of solute M=molar mass of solute   NaoH molar mass 40 g /mol

Q: A student removes 25 mL of 3.0 M NaOH and dilutes it to final volume of 350 mL. What is the…

A: Given,  Initial volume, V1 = 25 ml  Initial concentration, S1 = 3.0 M  Final Volume, V2 = 350 ml…

Q: A 12.5 mL portion of a base solution of an element from Group 2A is diluted to 500 mL, and the…

A: Initial volume of base solution (of elements group 2A ) = 12.5 ml  New Volume of base solution = 500…

Q: The mass percentage of hydrochloric acid within a solution is 32.00%. Given that the density of this…

A: Given: The mass percentage of HCl solution = 32.00% The density of the solution = 1.161 g/mL We have…

Q: Calculate the composition of the following solution in mass/mass %: 40.0 g KCl per 4.00 x 10 ml…

A: Density of solution = 1.14 g mL-1  Volume = 4.00 x 102 mL  Mass of KCl = 40.0 g

Q: An aqueous solution of manganese (II) iodide,MnI2,is made by dissolving 21.1 grams of manganese(II)…

A: Weight/Volume percentage = it tells about amount of solute present per 100 mL of solutionWeight of…

Q: Zinc dissolves in hydrochloric acid to yield hydrogen gas as follows:Zn(s) + 2HCl(aq) → ZnCl2(aq) +…

A: The values are given as follows:

Q: A beaker contains a water solution of unknown monoprotic* acid (molar mass of the acid is known to…

A: Mass percentage: It is a way of representing the concentration of an element in a compound or a…

Q: An ethanol-water solution has been prepared by dissolving 10 mL of ethanol (d=0.789 g/mol) in a…

A: Given:- Volume of ethanol = 10 mL Density of ethanol = 0.789gml Volume of solution = 100 mL Density…

Q: What mass of oxalic acid dihydate, H2C2O42H2O, is needed to make a 0.498 mol solution of oxalic acid…

A: Given, Number of mol H2C2O4.2H2O = 0.498 mol Volume = 250.0 mL Since, 1000 mL = 1 L  or        1 mL…

Q: How many liters of a 1.85 M KNO3 solution can be prepared from 53.3 g of KNO3? Express your answer…

A: First convert the given KNO3 mass to moles. Moles=MassMolar mass=53.3 g101.10 g/mol=0.527 mol

Q: If you add 250 ml of water to 250 ml of a 0.5M NaOH solution, what will the molarity of the diluted…

A:

Q: A 0.056 mol/L Na2CrO4 solution contains 9.100 g NaCrO4- What is the volume of the solution

A:

Q: .600 M NaCi aqueous SC www 0.997 g / cm3

A: When non volatile solutes are added to a pure solvent ,the solution formed have lower freezing point…

Q: Calculate the mass of NaClNaCl in a 38 −mL−mL sample of a 1.3 MM NaClNaCl solution.

A: Molarity of NaCl = 1.3 M = 1.3 mol/L Since Molarity = moles of NaCl / Volume of NaCl in Litre. Given…

Q: If you are asked to prepare a 3.10 M NaOH solution in the laboratory, to what volume should you…

A:

Q: Calculate the mass of NaOH in 150 cm^3 of a 0.1M solution provided.

A: no of moles = mass/molar mass molarity= no of moles of solute/volume of solution in liter molarity…

Q: Calculate the molarity of a solution prepared by dissolving: 0.17 mol sulfuric acid in 85 mL of…

A: The molarity of a solution is defined as the number of moles of solute dissolved per liter of the…

Q: 5.32 x 1023 molecules of sucrose (table sugar) is dissolved in water to create a 1.78L solution.…

A:

Q: Five standard solutions of HBr are prepared by serial dilution in which, at each stage, 10.00 mL are…

A: Five standard solutions of HBr are prepared by serial dilution in which, at each stage, 10.00 mL are…

Q: In the laboratory, a student dilutes 22.3 of 6.05 M perchloric acid solution to a total volume of…

A: By using the concept of law of equivalent ie;     M1V1=M2V2

Q: Calculate the molarity of a solution made by dissolving 11.1 g CaCl2(s) in water to make 400. mL of…

A:

Q: If 1.5 g of potassium dichromate (K2Cr2O7) is used to prepare a standard solution in a 250 mL…

A: Solution:    Molarity is the measure of the concentration of species.The amount of solute present…

Q: 1.55 x 1022

A: Molarity of NaCl (M) = 0.5 M Volume of NaCl = 50 mL =0.050 L Moles of NaCl = M × V(L)   = 0.50 ×…

Q: A solution of 0.5 M NaOH of volume 100 ml was diluted to 400 ml. What was the Molarity of the…

A: Molarity of a solution is defined as the number of moles of solute in one liter of the solution.…

Q: A solution of hydrogen peroxide is 30.0% H2O2 by mass and has a density of 1.11 g/mL. What is the…

A: Given: ℅w/w of H2O2 = 30℅ Density = 1.11 g/mL Standard data: The molar mass of H2O2 = 34.0147…

Q: A 2.87% by mass solution of CaCl 2 has a density of 1.04 g/mL. What is the molarity of this…

A:

Q: If you add 250 ml of water to 250 ml of a 2.6M NaOH solution, what will the molarity of the diluted…

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Q: You are asked to prepare 52 mL of a diluted solution that contains 5 g CuCl2, to what volume should…

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Q: Concentrated aqueous hydrochloric acid (HC) is 38% HCl by mass. Its concentration is 12,0 M. What…

A: The molarity of the solution is equal to the number of moles of solute dissolved per liter of…

Q: If 426 mL of 0.204 M HCI solution is needed to neutraize a solution of Ca(OH)2. how many grams of…

A:

Q: chemist prepares a solution of silver(I) nitrate AgNO3 by measuring out 6.4102 x 10^2 μmol of…

A: Molarity is defined as total number of solute dissolve in one litre of solution Molarity…

Q: calculate the molarity of 3 g of NaCl in 100.00 mL of water.

A: Concentration indicates the amount of any compound or component mixed in definite volume. The…

Q: Upon adding 275 mL of water to 275 mL of a 0.310 M aqueous solution of NaOH, the concentration of…

A: HALF Concentration = Mass/Volume As the mass of NaOH, or moles of NaOH in solution does not changes…

Q: Calculate the Molarity of 2.12 g of potassium bromide, KBr, in 458 ml of solution.

A: