A 51.0 mL51.0 mL aliquot of a 1.40 M1.40 M solution is diluted to a total volume of 248 mL.248 mL. A 124 mL124 mL portion of that solution is diluted by adding 131 mL131 mL of water. What is the final concentration? Assume the volumes are additive.

Q: An aqueous solution of 6.70 M ammonia, NH3, has a density of 0.950 g/mL. The percent by mass of NH3…

A: The mass percentage of a component in a solution can be defined as follows: Mass % of a…

Q: A50 ml. sample of a 48 0 % (m/v) acetic acid (HC,H3O2) solution is added to water to give a final…

A:

Q: One brand of laundry bleach is an aqueous solution containing 4.00% sodium hypochlorite (NaOCl) by…

A: Given that: NaOCl solution = 4% by mass (4 g NaOCl/100 g solution) x (1 mol NaOCl/  74.44 g NaOCl) =…

Q: A 10 % solution of NaCl means that in 100 grams of solution there is? a. 5.85 g NaCl b. 58.5 g…

A: A multiple choice question based on percentage of solution, which is to be accomplished.

Q: The density of an aqueous solution containing 40.0% sulfuric acid (H2SO4) by mole is 1.681 g/mL. c)…

A:

Q: How many moles of ions per liter are there in a 26.00% by mass aqueous sodium chloride solution…

A:

Q: Calculate the molarity of each of the following solutions. A.) 27.03 g C6H12O6 in 1.25 L of…

A:

Q: What volume, in mL, of 2.52 M HCl is required to prepare 176.5 mL of a 0.449 M HCl solution? a) 156…

A: Since the moles of HCl in the 2.52 M HCl solution taken should be the final moles of HCl in 0.449 M…

Q: e molarity of a 9.00% by mass ammonium chloride aqueous solution at 20 celsius? Density of the…

A: Molarity is defined as number of moles of solute dissolved per liter of solution. It is the…

Q: How many milliliters of water should a chemist add if they want to prepare an 0.200 aqueous solution…

A: The number of moles for a given chemical species refers to the ratio of mass of the species to that…

Q: If I make a solution by adding water to 35 mL of methanol (CH,OH) until the final volume of the…

A:

Q: b) An ethanol-water solution is prepared by dissolving 10.00 mL of ethanol, CzH;OH, (d=0.789 g/mL),…

A: Volume percentage of ethanol =

Q: The mass of solute per 100 mL of solution is abbreviated as (m/v). Mass is not technically the same…

A:

Q: f 20. g of AgNO3 is available, what volume of 0.40 M AgNO3   solution can be prepared? Volume =…

A: Molarity is the moles of solute per liter volume of solution. It is represented as M.

Q: what masses of solute and solvent are present?

A: Number of moles = Molarity × Volume(L)  Molar mass of LiCl = 42.394 g/mol  Solution = solute +…

Q: An ethanol solution has a density of 0.8724 g/mL and contains 68.00% ethanol (CH3CH2OH) by mass.…

A: Assuming we have 100 mL i.e 0.1 L of solution  Given : % by mass of of ethanol = 68 %  and density…

Q: A 14.8 M solution of concentrated nitric acid has 15.7 mL withdrawn from it. The 15.7 mL sample is…

A: When a concentrated solution of concentration C1 and volume V1 is diluted by adding water to a final…

Q: Commercial hydrochloric acid (HCl) has a concentration of 12.1 M. What volume of the commercial HCl…

A: Since we know the final volume and concentration of the HCl solution as 250 ml and 3 M Hence final…

Q: 1.44 grams of a sample of marble (impure calcium carbonate) dissolved in 40 ml of 1.0 normality (N)…

A: %Purity = Pure mass x 100/Impure mass Number of moles = Molarity x Volume (L)

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 of solute per 100 mL of solution is abbreviated as (m/v). Mass is not technically the same…

A:

Q: A 11.33 M HCl solution has a density of 1.18 g/mL.  What is the concentration of this solution in…

A:

Q: A chemist must dilute 46.2 mL of 121. µM aqueous mercury(II) iodide (HgI₂) solution until the…

A:

Q: A 12.7 g sample of an aqueous solution of hydroiodic acid contains an unknown amount of the acid. If…

A: Given data,Mass of sample=12.7gMolarity of NaOH=0.325MVolume of NaOH=24.2mL=0.0242L

Q: A 20% by mass solution of phosphoric acid (H3PO4) in water has a density of 1.114 g/ml at 20 C. What…

A:

Q: What mass of HCl is contained in 45.0 mL of an aqueous HCl solution that has a density of 1.19 g cm…

A: Given: Volume of solution = 45.0 mL = 45 cm3 density of HCl solution = 1.19 g.cm-3  HCl percent by…

Q: A sample of concentrated nitric acid has a density of 1.41 g/mL and contains 70.0%HNO, by mass. What…

A: Given: Density of concentrated nitric acid=1.41g/mol Mass percentage of nitric acid=70.0% Formula:…

Q: A chemist needs 13.81 mL of 1.458 M NaCl. What volume in mL of 3.767 M NaCl must be diluted in water…

A: Moles before dilution and after dilution ae same as per mole concept.

Q: An aqueous 2.00 M hydrochloric acid solution is prepared with a total volume of 0.350 L. The…

A:

Q: 69.0 mL of 2.0 M Sr(OH)2 are mixed with 31.0 mL of 1.8 N Sr(OH)2 . What is the normality of the…

A: Given Sample 1 : Molarity of Sr(OH)2 = 2.0 M , volume = 69 ml Sample 2 : Normality of Sr(OH)2 = 1.8…

Q: A concentrated perchloric acid solution is 69.8% HCIO4 by mass and its density is 1.68 g mL-1. What…

A: Using molarity formula and equation of dilution we can solve this problem.

Q: For convenience, one form of sodium hydroxide that is sold commercially is the saturated solution.…

A: Concentration of the stock solution of sodium hydroxide saturated solution is given as 19.4 M.…

Q: Imagine you must prepare 50 mL of a 2M HCl solution.

A: To prepare 50 ml of a 2M HCl solution:

Q: How many milliliters of water should a chemist addif they want to prepare an 0.200 M aqueous…

A:

Q: In the laboratory you dilute 5.08 mL of a concentrated 6.00 M hydrochloric acid solution to a total…

A: The volume of the concentrated solution, V1=5.08 mL The Concentration of the concentrated solution,…

Q: What mass of KBr (in grams) should you use to make 250.0 mL of a 1.20 M solution of KBr? Express the…

A: We have to predict the mass of salt needed.

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

A: We know, Vinitial x Sinitial = Vfinal x Sfinal Therefore, Sfinal = (Vinitial x Sinitial) / Vfinal…

Q: How many grams of dextrose are needed to make 675 mL675 mL of a 26.0% (w/v)26.0% (w/v) dextrose…

A:

Q: what is the mass % of isopropanol in a 2.53 M solution of isopropanol (MM=60.10 g/mol) in water? The…

A: The term mass percentage is a method to represent the concentration of the elements in a given…

Q: How many grams of dextrose are needed to make 725 mL of a 34.0% (w/v) dextrose solution? Note that…

A: Given : Volume required = 725 ml w/v % = 34%

Q: How many grams of MgCl2 (MM= 95.211 g/mol) is needed to prepare 100.0 mL of a 1.61 m MgCl2 solution?…

A: The mass of MgCl2 needs to be dissolved= 0.1814×95.211 = 17.2758 g.

Q: he concentration of the aqueous sucrose (C12H22O11) solution is 4.00 % sucrose by mass. What is the…

A: Given that:                              Mass percent of solute = 4%…

Q: An aqueous Na;PO, solution is made using 42.3 g of Na,PO, diluted to a total solution volume of 2.00…

A: Given :- Molar mass of Na3PO4 = 163.94 g/mol Given mass of Na3PO4 = 42.3 g Density of solution =…

Q: An aqueous solution of 2.54 M silver nitrate, AgNO3, has a density of 1.35 g/mL.The percent by mass…

A: The percent by mass of AgNO3 in the solution is calculated in step two.

Q: How many grams of dextrose are needed to make 715 mL of a 33.0% (w/v) dextrose solution? Note that…

A: The required amount of dextrose can be calculated using the given data.

Q: How many grams of NaOH would you need to make 8,613 mL of a 200 mM NaOH solution (m.w. = 40.00…

A: Molarity is a term used for expressing concentration of the solution and is defined as the moles of…

Q: 1.44 grams of a sample of marble (impure calcium carbonate) dissolved in 40 ml of 1.0 normality (N)…

A: Introduction: Molarity and Normality is often used to express the concentration of the solution.…

Q: The mass of solute per 100 mL of solution is abbreviated as (m/v). Mass is not technically the same…

A: %(w/v) = 100 x mass of solute/Volume of solution in mL

Q: According to the label on a bottle of concentrated hydrochloric acid, the contents are 36.0% HCl by…

A: By considering the total mass of the solution be 100 g. The amount (m) of HCl present is 36.0 g. The…