A student pipetted 10 mL of a sample solution into a 250 mL volumetric flask and diluted it to the mark with distilled water. The student then, pipetted 10 mL of this new solution into a 50.00 mL volumetric flask and diluted it to the mark with water. What is the dilution factor of the final solution?

Q: A chemist prepares a solution of zinc oxalate (ZnC₂04) by measuring out 3.94 mg of zinc oxalate into…

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Q: A chemistry student weighs out 0.139 g of lactic acid (HC,H,O,) into a 250. mL volumetric flask and…

A: Mass of lactic acid = 0.139 g Volume of solution = 250 mL or 0.250 L Molar mass of lactic acid =…

Q: A chemistry student weighs out 0.101 g of hypobromous acid (HBRO) into a 250. mL volumetric flask…

A: Given: Mass of hypobromous acid = 0.101 g Volume of volmetric flask   = 250 mL Molarity of NaOH…

Q: A solution for disinfecting clinical thermometers was prepared by dissolving 22.5 g of ethyl alcohol…

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Q: A chemistry student weighs out 0.0457 g of formic acid (HCHO,) into a 250. mL volumetric flask and…

A: Given- Weight of formic acid =0.0457g Volume volumetric flask=250mL Concentration of NaOH =0.1100 M…

Q: A chemistry student weighs out 0.155 g of lactic acid (HC,H,O3) into a 250. mL volumetric flask and…

A: Lactic Acid is:- HC3H5O3 The molar mass of lactic acid is :- 90.08g/mol Weight of Lactic acid used =…

Q: A chemist prepares a solution of copper(II) sulfate (CuSO4) by measuring out 12. g of copper(II)…

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Q: 0.9989 g Volume used (ml) ? Mass of NagHaY 2H20 Initial volume (ml) final volume (ml) 25.25 Thration…

A: Given: Initial volumes (mL): 0.75, 1.25, 1.75, 2.55 and 1.90. Final volumes (mL): 25.25, 26.75,…

Q: Newly produced beer must be checked to see if it meets predetermined standards. The percentage of…

A: The percentage of ethanol in the volume of beer is calculated by the formula: % of ethanol=Volume of…

Q: A chemist must prepare 625.mL of 149.μM aqueous magnesium fluoride MgF2 working solution. He'll…

A: Dilution is the solution obtained by adding more solvent in the stock (more concentrated) solution.…

Q: A chemist prepares a solution of copper(II) fluoride (CuF,) by weighing out 0.0245 g of copper(II)…

A: Given: mass = 0.0245 g volume = 50 mL = 0.5 dL we have to determine the concentration of copper…

Q: A chemistry student weighs out 0.184 g of phosphoric acid (H, PO a triprotic acid, into a 250. ml.…

A: Given data,Mass of H3PO4=0.184gVolume of water=250mL=0.250LMolarity of NaOH=0.1400M

Q: The stockroom has provided you with a 1.60 M stock solution of NaCl. What volume of this stock…

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

Q: A chemistry student weighs out 0.141 g of acrylic acid (HCH,CHCO, into a 250. ml volumetric flask…

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Q: A chemistry student weighs out 0.199 g of hypobromous acid (HBro) into a 250, mL volumetric flask…

A: Given: mass of HBrO = 0.199 g Volume = 250 mL 0.1000 M NaOH

Q: If you had to prepare a 0.200 M HCl solution from 17.0 mL of a 2.60 M HCl stock solution, to what…

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Q: A 100 mg vitamin C tablet weighed 1.681 g. A student crushed the tablet and transferred 0.150 g of…

A: Given the weight of 100 mg Vitamic C (ascorbic acid) tablet = 1.681 g  0.150 g of the above tablet…

Q: 1. A solution is prepared by taking a clean and dry 50.0 ml volumetric flask. You are tasked to…

A: Mass of watch glass = 23.5 g Mass of watch glass + salt = 30 g So, Mass of salt = (30-23.5) g = 6.5…

Q: A sample of air, with a mass of 5.0 kg, contained carbon monoxide with a concentration of 12 parts…

A: We have given that  A sample of air with a mass of 5.0 kg, contained carbon monoxide with a…

Q: Determine the amount of potassium chloride in each solution. 18.9 g of a solution containing 1.12 %…

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Q: A chemistry student weighs out 0.183 g of sulfurous acid (H,SO3), a diprotic acid, into a 250. mL…

A: According to law of gram equivalence, for an acid base reaction at equivalence point, number of gram…

Q: An aqueous solution of sodium hydroxide, NaOH , is made by dissolving 15.6 grams of sodium hydroxide…

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

Q: A chemistry student weighs out 0.234 g of chloroacetic acid (HCH,CICO,) into a 250. mL volumetric…

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Q: A chemistry student weighs out 0.0377 g of acrylic acid (HCH,CHCO,) into a 250. mL volumetric flask…

A: The solution is given below -

Q: When 35.0 grams of KBr are dissolved in 245 grams of water, an expression for the resulting solution…

A: Answer is  a) 35.0 g KBR per 280 g solution

Q: A chemist must prepare 275. mL of 340. mM aqueous iron(III) bromide (FeBr,) working solution. He'll…

A: Please find the attached file for explanation.so V2 is the volume of stock solution taken to make…

Q: A chemistry student weighs out 72. g of an unknown solid compound X and adds it to 550. mL of…

A: An student weighs out 72. g of an unknown solid compound X and adds it to 550. mL of distilled water…

Q: Is the mixture described in the table homogeneous or heterogeneous? Explain how you can tell.

A: A substance which consists of two or more elements or compounds which are not chemically reactive is…

Q: A chemist adds 75.0 mL of a 3.20 g/dL potassium dichromate (K,Cr,0, solution to a flask. Calculate…

A: Concentration of potassium dichromate(K2Cr2O7) = 3.20g/dL Volume of the solution = 75.0ml = 75.0ml ×…

Q: A chemistry student weighs out 0.228 g of phosphoric acid (H,PO, a triprotic acid, into a 250. mL…

A: This is an acid base titration where H3PO­4 is a triprotic acid and the reaction taking place will…

Q: The registered pharmacy technician receives a prescription for 100 of 17% w/ v salicylic acid…

A: Given: prescription required = 17 % w/v salicylic acid ointment. Amount of ointment required = 100…

Q: A chemistry student weighs out 0.107 g of acrylic acid (HCH,CHCO,) into a 250. mL volumetric flask…

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Q: A student dissolves a Jefferson nickel to make 100.00 mL of solution in a volumetric flask. The…

A: Mass of Copper in Jefferson nickel used for making the first solution is taken as ‘x’ g.Hence,…

Q: A chemistry student weighs out 0.159 g of ascorbic acid (H,CH¸O.), a diprotic acid, into a 250. mL…

A: At equalvalence  point no of milimoles  of acid equal  to no of milimoels  of  base  Formula  used…

Q: A chemistry student weighs out 0.106 g of sulfurous acid (H, So,), a diprotic acid, into a 250. mL…

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Q: gas (pure or mixture) 1 solute P/P(o) solvent c/c(o) pure solid or liquid

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Q: A chemistry student weighs out 0.0856 g of citric acid (H,C H,0,), a triprotic acid, into a 250. mL…

A: Given, amount of citric acid =0.0856 gramvolume of citric acid solution =250 mL =0.250 Lis titrated…

Q: A chemistry student weighs out 0.0690 g of hypobromous acid (HBrO) into a 250. mL volumetric flask…

A: Given: Mass of HBrO = 0.0690 g. And concentration of NaOH = 0.1700 M

Q: When 25.0 grams of NaCl are dissolved in 675. grams of water, an expression for the resulting…

A: Given: Weight of NaCl = 25.0 g Weight of water = 675 g

Q: A chemist prepares a solution of barium acetate BaC2H3O22 by measuring out 83.g of barium acetate…

A: Given that, A chemist prepares a barium acetate [(CH3COO)2Ba] solution in a 250 mL volumetric flask…

Q: A chemistry student weighs out 0.0812 g of sulfurous acid (H₂SO3), a diprotic acid, into a 250. mL…

A:

Q: A chemistry student weighs out 0.0923 g of hypobromous acid (HBRO) into a 250. mL volumetric flask…

A: Given mass of HBrO = 0.0923 g  Volume of HBrO in mL = 250.0 mL  Molarity of NaOH = 0.1400 M…

Q: A chemistry student weighs out 0.0353 g of sulfurous acid (H, SO,). a diprotic acid, into a 250, mL…

A: Given : Mass of H2SO3 = 0.0353 g Volume of H2SO3 solution = 250 mL = 0.250 L…

Q: A chemistry student weighs out 0.0932 g of acrylic acid (HCH,CHCO,) into a 250. mL volumetric flask…

A: The quantitative analysis method for determination of the concentration of acid or the base by…

Q: a sample of unknown mixture has a total mass of 134g, a total volume of 113 cm3, and consists only…

A: Both volumes and masses are addictive in nature. If in a mixture, we add different mass  and volume…

Q: A chemist prepares a solution of mercury(I) chloride (Hg,CI,) by measuring out 0.389 mg of…

A: given :-  mass of Hg2Cl2 = 0.389 mg  volume of solution = 100. mL  To calculate :-  concentration of…

Q: A chemistry student weighs out 0.420 g of citric acid (H,C,H,O,), a triprotic acid, into a 250. mL…

A: The quantitative analysis for determining the concentration of an acid or base by neutralizing it…

Q: A chemistry student weighs out 0.282 g of ascorbic acid (H,C¸H¸O), a diprotic acid, into a 250. mL…

A: Given : Mass of H2C6H6O6 = 0.282 g And concentration of NaOH = 0.2000 M The neutralisation reaction…

Q: A chemistry student weighs out 0.130 g of phosphoric acid (H, PO,), a triprotic acid, into a 250. mL…

A:

Q: A chemistry student weighs out 0.129 g of lactic acid (HC,H,0,) into a 250. mL volumetric flask and…

A: Since Lactic acid is a weak monoprotic acid  Hence it will react with NaOH as  NaOH + HC3H5O3…