You are asked to create a 0.35 M solution of calcium chloride (CaCl2) using a 250.0 mL volumetric flask. a. You are asked to create 50.0 mL of 0.15 M CaCl2 from the stock solution you made in (A). Calculate the volume of stock solution you need to create your diluted solution.

Q: A NaF(aq) solution (solution 2) is 9.20% by mass in NaF. Solution 2 has a density of 1.05 g/mL. 415…

A:

Q: Many metal ions are precipitated from solution by the sulfide ion. As an example, consider treating…

A: Given: The reaction is as follows, CuSO4(aq) + Na2S(aq) → CuS(s) + Na2SO4(aq) Molarity of Na2S…

Q: A student wishes to prepare 125-mL of a 0.172 M nickel(II) sulfate solution using solid nickel(II)…

A: Given information, Volume of solution = 125 mL Concentration of the solution = 0.172 M   Molarity of…

Q: In the laboratory a student combines 31.8 mL of a 0.232 M sodium sulfate solution with 24.7 mL of a…

A: Number of moles of solute devided by volume of solution in liter is known as molarity.

Q: What volume of stock solution do you need to prepare 50.00 mL of .0125 M HCl solution from 1.25 M…

A:

Q: In the laboratory, a student adds 48.0 mL of water to 14.6 mL of a 0.624 M nitric acid solution.…

A: Given values, N1= 0.624 M V1= 14.6mL N2=?? V2= 14.6+48.0 = 62.6 mL

Q: Imagine you transferred 5.00 mL of 1.75 M HCl solution into an empty 200.00 mL volumetric flask then…

A: Given is Initial Volume of HCl solution = V1 = 5 mL Molarity of HCl solution = M1 = 1.75 M Final…

Q: One way to remove lead from water is to add a source of iodide ion so that the lead will precipitate…

A:

Q: A solution of HCl was prepared from a stock solution as follows: 50.00 mL of stock solution was…

A: Given: Volume of stock solution used = 50.00 mL Volume of dilution A prepared = 250.0 mL Volume of…

Q: In the laboratory, a student adds 44.1 mL of water to 12.1 mL of a 0.577 M nitric acid solution.…

A: Provided initial Molarity(M1)=0.577M Let final Molarity = M2    (say) Initial volume of nitric acid…

Q: In the laboratory, a student adds 46.1 mL of water to 21.0 mL of a 0.779 M perchloric acid solution.…

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

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

Q: It is desired to prepare 0.500 L of a 0.125 M solution of NaCI from a 1.00 M stock solution. How…

A: molarity is defined as no of moles of solute devided by volume of solution in liter

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 student weighs out a 3.22 g sample of K2SO4 , transfers it to a 100. mL volumetric flask, adds…

A:

Q: If exactly one molecule of solute is present in 1.001.00 L of solution, what is the concentration of…

A: We know ; 1 mol of Solute = 6.022 × 10²³ Molecules   * Molarity of Solution = Moles of Solute /…

Q: Describe how you would make 800.0 mL of a 0.800 M NAOH solution from a 13.0 M stock NaOH solution…

A:

Q: If 211 mL of water is added to 5.00 mL of 3.24 M NaCI solution, what is the concentration of the new…

A: N1= 3.24M V1= 5.00 mL N2= ?? V2=211mL+5mL=216mL

Q: What is the molarity of the resulting solution when 300. mL of a 0.600 M aqueous solution is diluted…

A: Given :-  Initial concentration (M1) = 0.600 M  Initial volume (V1) = 300 mL  Final volume (V2) =…

Q: In the laboratory a student combines 46.6 mL of a 0.307 M iron(III) fluoride solution with 22.4 mL…

A: GIVEN: The Volume of Iron(III) Fluoride = 46.6 mL The concentration of Iron(III) Fluoride =0.307 M…

Q: Consider the combustion of methane, CH4. CH4 (g) + 202 (g) C02 (g) + 2H20(g) Suppose 8.00 g of CH4…

A: Given: Molarity of H2SO4 is 4.00 M Weight of CuO is 1.60 g

Q: a forensic chemist prepares 290.0 mL of a 0.649 M solution from a 4.04 M stock solution. what volume…

A: Molarity is the unit of concentration of a solution, and its unit is mol/L. It is defined by the…

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

A: Given: Molarity of initial NaOH solution is 0.5 M. Volume of initial NaOH solution is 100mL. Volume…

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: Dilution a. 53.4 mL of a 1.50 M solution of NaCl is on hand, but you need a 0.800 M solution. How…

A: Dilution of the solution: On dilution of the solution with the pure water, the mole of solute…

Q: A chemist places 2.2352 g of NaCl in a 100 mL volumetric flask and adds water to the mark and calls…

A: Weight of NaCl is 2.2352 gm Molar mass of NaCl is 58.5 gm/mole

Q: A 230.0-mL sample of a 0.275 M solution is left on a hot plate overnight; the following morning the…

A: Given :-A 230.0 mL sample of a 0.275 m solutions is left on ahot plate overhight, the following…

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: In the laboratory a student combines 23.6 mL of a 0.117 M aluminum bromide solution with 11.9 mL of…

A: It is given that 23.6 mL of 0.117 M of aluminium bromide is combined with 11.9 mL of 0.353 M of…

Q: A student pipets 13 mL of a 0.0115 M solution of CaCl2 into a 100.00 mL volumetric flask and dilutes…

A: Given,

Q: A student needs to make 250 mL of 1.4 M Fe(NO3)3 by dilution. How many milliliters of a 5.0 M…

A: Given data :  Initial molarity of Fe(NO3)3 (M1) is 5.0 M Final volume of Fe(NO3)3 (V2) is 250 mL.…

Q: You have 291 mL of a 1.25 M potassium chloride solution, but you need to make a 0.50 M potassium…

A: Given data is as follows: The initial volume of potassium chloride V1= 291 mL The initial…

Q: A student weighs out a 3.06g sample of MgBr2, transfers it to a 135mL volumetric flask, adds enough…

A:

Q: determine the amount of solute in each 50.0 g solution A: grans of sucrose in 5.8% sucrose

A:

Q: What volume, in mL, of a 6.75 M solution should be added to a 500.00 mL volumetric flask to create a…

A:

Q: In many areas, the drinking water standard for nitrate ions is 5.00 ppb. Calculate the mass, in μg,…

A:

Q: In the laboratory a student combines 21.9 mL of a 0.211 M iron(II) iodide solution with 30.0 mL of…

A: Given- Concentration of iron (||)iodide solution= 0.211M Volume of iron (||) iodide solution =21.9…

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: Suppose you need to prepare 138.6 mL of a 0.426 M aqueous solution of NaCl. what mass of grams in…

A:

Q: Suppose that you pipette a 9.00 mL aliquot of an aqueous 0.589 M solution of glucose into a 150 mL…

A: The question is based on the concept of solutions. we are diluting  a stock glucose solution. we…

Q: A 501-mL sample of a 0.184-M CaCl2  solution is left on a hot plate overnight; the following…

A: Given: Initial volume of sample=501 mLInitial molarity of sample=0.184 MFinal molarity of…

Q: To what volume should you dilute 35 mL of a 13 M stock HCl solution to obtain a 0.600 M HCl…

A: Given :-  initial concentration = 13 M  initial volume = 35 mL  final concentration = 0.600 M  To…

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

A: 0.517 M

Q: neutralize a nitric acid solution. 1. Write a balanced chemical equation for the reaction that…

A: Barium hydroxide is a base and nitric acid is acid  Reaction between these two is a neutralization…

Q: In the laboratory a student combines 34.4 mL of a 0.228 M cobalt(II) chloride solution with 23.9 mL…

A: Calculate the number of moles of present in cobalt(II) chloride solution: 1 mL = 0.001 L One mole…

Q: Consider a solution prepared by combining 45.0 g of BaCl2 with enough water to prepare a 750.0 mL of…

A: Given information: Mass of barium chloride = 45.0 g Volume of solution = 750.0 mL Concentration of…

Q: You need to make a stock solution ofMg(HCO3)2 with a concentration of 5.50 M. You have a 750.0 mL…

A: Number of moles of solute present in 1 liter of solution is known as molarity of the solution.…

Q: You are asked to make a stock solution of NaCl and dilute it to a 25 mL of 0.72 M and a 25 mL of…

A: We can make 100 mL of 1 M NaCl solution as stock solution. To make 100 mL of 1 M NaCl solution , 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: A student needs to dilute a 0.36 M Pb(NO3)20.36 M Pb(NO3)2 solution to make 89.089.0 mL of 0.22 M…

A: For preparing the working solutions we use dilution formula. M1V1=M2V2M1=molarity of stock…