A student pipets 12 mL of a lithium sulfate solution into a 163 mL volumetric flask and dilutes to the mark. He analyzes the diluted solution and finds its concentration to be 0.0072 M NaNO3 . What was the concentration of the NaNO3 in the original solution?

Q: A student pipets 17 mL of a lithium sulfate solution into a 274 mL volumetric flask and dilutes to…

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Q: What volume, in mL, of 0.172 M HCl is needed to neutralize 25.0 mL of 0.283 M Ba(OH)2? Express your…

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Q: 250.0 mg of copper(II) sulfate pentahydrate (CuSO4•5H2O, 249.69 g/mol) was dissolved in water to…

A: Since mass of CuSO4•5H2O used = 250 mg = 0.25 g              (since 1 g = 1000 mg) Hence moles of…

Q: The density of a 5.58 m acetic acid is 1.04 g mL-. What is the molar concentration of this solution?…

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Q: If 27.4 mL27.4 mL of the barium hydroxide solution was needed to neutralize a 3.82 mL3.82 mL aliquot…

A: The balanced Chemical equation given in the question - Ba(OH)2 + 2HClO4 ----> Ba(ClO4)2 + 2H2O…

Q: A chemist places 2.9764 g of NaCl in a 100 mL volumetric flask and adds water to the mark and calls…

A: Given, Stock Solution 1 : mass of NaCl = 2.9764 g volume of flask = 100 mL Solution 2 : Volume…

Q: Phosphoric acid and sodium hydroxide react according to the following equation: H3 PO4(aq) +3…

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Q: Fill in the blanks: An environmental chemist analyzed the effluent from an industrial process known…

A: Since the benzoic acid has only 1 acidic H  Hence moles of NaOH required for complete neutralisation…

Q: What is the final concentration of the diluted solution if a student was asked to prepare a new HCl…

A: Given: Concentration of stock HCl solution = 12 M Volume of stock solution taken = 0.50 mL  And the…

Q: What volume of 0.175 M sodium phosphate, Na3PO4, solution is necessary to completely react with 95.4…

A: Reaction                              Na3PO4 (aq) + CuCl2 (aq) -------> Cu3(PO4)2 (s) + NaCl (aq)…

Q: In the laboratory, a student dilutes 27.2 mL of a 8.33 M hydroiodic acid solution to a volume of…

A: hydroiodic acid solution ( HI ) Initial volume = V1 = 27.2 mL Initial Concentration = M1 = 8.33 M…

Q: Calculate the concentration of an aqueous solution with a volume of 350 mL in which 10.5 g of…

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Q: A barium hydroxide solution is prepared by dissolving 3.49 g of Ba(OH), in water to make 47.2 mL of…

A: The concentration of barium hydroxide can be caluculated using the following formula:

Q: What is the concentration of Br (aq) in a solution prepared by mixing 75.0 ml Of 0.62 M iron (III)…

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

Q: The antacid Amphogel contains aluminum hydroxide, Al(OH)3. 27.5 mL of an HCl solution are completely…

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Q: A student pipets 11 mL of a 0.0155 M solution of CaCl2 into a 100.00 mL volumetric flask and dilutes…

A: Given,

Q: A 20.05 mL sample of Vinegar(an aqueous solution of acetic acid, HC2H3O2) has a density of…

A: Find mas of vinegar present in 20.05 ml sample of vinegar Density of sample is 1.061 g/mLmass of…

Q: What is the volume of 1.323 M sodium hydroxide required to react with 15.3 g of concentrated acetic…

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Q: You wish to make a 0.192 M perchloric acid solution from a stock solution of 12.0 M perchloric acid.…

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Q: What is the concentration of nitric acid in the final solution?

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Q: Many common titrations involve the reaction of acid and base. If 24.74 mL of 0.503 M H2SO4solution…

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Q: A student needs to prepare 250 mL of a 0.500 M aqueous solution of sucrose, C, H,0, (aq), which is…

A: Preparation of stock solutions are done in Volumetric flask as they have high degree of precision…

Q: SIMPLE REACTIONS Writing nebionic equations The following chemical reaction takes place in aqueous…

A: The given chemical reaction is: 2Fe(NO3)3(aq)+3Na2S(aq)→Fe2S3(s)+6NaNO3(aq) Net ionic equation shows…

Q: Calculate the mass, in grams, of potassium iodide that must be added to a 125-mL volumetric flask in…

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Q: What is the concentration of sodium ions in a solution prepared by dissolving 5.00 grams of sodium…

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Q: Suppose you are titrating vinegar, which is an acetic acid solution of unknown strength, with a…

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Q: A solution is prepared by adding 25.0 mL of 1.30 M AlCl3 solution to a flask, and then adding enough…

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Q: In the laboratory, a student adds 58.2 mL of water to 15.5 mL of a 0.771 M hydroiodic acid solution.…

A: According to the equation:

Q: If the above reaction involves the monoprotic acid potassium hydrogen phthalate (KHP, molar mass =…

A: The balanced reaction between the monoprotic potassium hydrogen phthalate, KHP and NaOH can be…

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: 200.0 mL of 3.96 M hydrochloric acid is added to 100.0 mL of 4.60 M barium hydroxide. After the…

A: Molar concentration of hydrochloric acid = 3.96 M Volume of hydrochloric acid = 200 ml = 0.2 L Molar…

Q: What mass of oxalic acid dihydate, H2C2O4•2H2O, is needed to make a 0.498 M solution of oxalic acid…

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Q: A solution with a total volume of 1000.0 mL contains 37.1 g Mg(NO3)2. If you remove 20.0 mL of this…

A: Given : mass of magnesium nitrate = 37.1 g Volume of solution = 1000 mL

Q: The molarity of an aqueous solution of potassium hydroxide, KOH, is determined by titration against…

A: Balanced chemical equation: HBr +  KOH  ---->  KBr  +  H2O Number of mmole of KOH = number of…

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

A: Determine limiting reagent:1 mL = 0.001 L

Q: ium hydroxide solution according to the equation   HC2H3O2+NaOH⟶H2O+NaC2H3O2   If you require…

A: The given data : The volume of NaOH = 34.58 mL The molariry of NaOH= 0.1036 M The volume of acetic…

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: If 74.3 mL of 0.777 M HCl is diluted to a total volume of 152 mL and then 25.0 mL of the diluted HCl…

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Q: What is the iron(II) ion concentration in a solution prepared by mixing 329 mL of 0.411M iron(II)…

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Q: A student pipets 18 mL of a lithium sulfate solution into a 264 mL volumetric flask and dilutes to…

A: Given, Volume of lithium sulfate  pipetted out = 18 mL volume of flask = 264 mL Final concentration…

Q: Suppose you are titrating vinegar, which is an acetic acid solution of unknown strength, with a…

A: Apply M1V1 = M2V2

Q: If a sample of vinegar was found to be 1.55% (m/m) acetic acid, what is the concentration of the…

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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: The average adult human male has a total blood volume of 4.9 L .   If the concentration of sodium…

A: Given:.Molarity of sodium ion = 0.136 M.Volume of blood= 4.9 L.

Q: A chemist prepares a solution of magnesium fluoride (MgF2) by measuring out 0.0553 g of magnesium…

A: Concentration in mol/L = Number of mols of solute/Volume of solution (L) Number of mols =mass/molar…

Q: A student pipets 18 mL of a lithium sulfate solution into a 164 mL volumetric flask and dilutes to…

A: We have to calculate the concentration of the original solution.

Q: A student pipets 13 mL of a lithium sulfate solution into a 334 mL volumetric flask and dilutes to…

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Q: What is the volume of 1.596 M sodium hydroxide required to react with 14.5 g of concentrated acetic…

A: volume of 1.596 M sodium hydroxide required  = 133 ml

Q: You have 250. mL of 0.136 M HCl. Using a volumetric pipet, you take 25.00 mL of that solution and…

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Q: The amount of nitrogen in an organic substance can be determined by an analytical method called the…

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