1) If 56.2 mL of BaCl2 solution is needed to precipitate all the sulfate ion in a 746 mg sample of Na2SO4, what is the molarity of the solution? Express the molarity to three significant digits.   2) If 42.0 mL of 0.212 M HCl solution is needed to neutralize a solution of Ca(OH)2, how many grams of Ca(OH)2 must be in the solution? Express the mass in grams to three significant digits.

Q: A 18.0 wt% solution of CaCl₂ (110.98 g/mol) has a density of 1.165 g/mL. What is the mass, in…

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Q: 1. What is the percentage of acetic acid, CH3COOH, in a sample of vinegar if 36.00 mL of 0.486 M…

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Q: In a titration experiment, a chemist finds that a 25.0 mL solution of aq. HCl requires 51.3 mL of…

A: n-factor of HCl, nHCl = 1 Molarity of HCl, MHCl = ? Volume of HCl, VHCl = 25 mL = 0.025 L n-factor…

Q: When 4.36 g of sodium hydroxide are added to 125 mL of 3.80×10−1 M HCl, what is the concentration,…

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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: A student needs to prepare a 500.0 mL solution of 0.150 M Zn(NO3)2. How many grams of Zn(NO3)2 is…

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Q: What is the molarity of an aqueous solution with a volume of 450. mL that contains 200. g of iron…

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Q: A 5.00-g sample of vinegar is titrated with 0.108 M NaOH. If the vinegar requires 39.1 mL of the…

A: From given data M of NaOH = 0.108 M  V of NaOH = 39.1 mL = 0.0391 L Mass of sample of vinegar = 5 g…

Q: What is the percentage of acetic acid, CH3COOH, in a sample of vinegar

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Q: Titration reveals that 11.6 mL of 3.0 M sulfuric acid are required to neutralize the sodium…

A: Volume of sulphuric acid = 11.6 ml  ...Or  because 1L = 1000 ml    .....so, = 11.6 ml × (1L /1000 ml…

Q: 1. When you initially standardized your NaOH solution, you diluted your HCl stock solution and added…

A: During the dilution process, the number of moles of a solute remain constant but the concentration…

Q: Calculate the molarity of the following solutions. a) 15.3 g of NaCl in 739 mL of solution. b) 0.550…

A: The molarity of a solution is defined as the number of moles of the solute present in the one Litre…

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: Lemons contain citric acid (C6H8O7). A lemon juice solution known to contain 1.6 g of citric acid…

A: The molecular formula of citric acid is C6H8O7.

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

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Q: Vinegar can be assayed to determine its acetic acid content. Determine the molarity of acetic acid…

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

Q: Consider a 0.586 M aqueous solution of barium hydroxide, Вa(ОН)2Ba(ОН)2 (аq). How many grams of…

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Q: Titration shows that a 5 mL sample of nitrous acid, HNO2, has a concentration of 0.5 M. If 8 mL of…

A: The balanced chemical equation for the reaction of nitrous acid(HNO2) with Mg(OH)2 can be written…

Q: 4. Calculate the molarity of each of the following solutions: (a) 10.0 g H,SO, in 250 mL of solution…

A: Answer: These questions are based on the basic understanding of concentration terms and relation…

Q: A chemist needs 225 mL of 2.4 M HCl. What volume of 12 M HCl must be dissolved in water to form this…

A: To calculate the volume of a definite molarity of a solution required to prepare solution of other…

Q: 1. What is the percentage of acetic acid, CH3COOH, in a sample of vinegar if 36.00 mL of 0.486 M…

A: As per our guidelines we are supposed to answer only one question. Kindly repost other questions as…

Q: In a demonstration of strong electrolytes, weak electrolytes, and nonelectrolytes, Professor…

A: When bulbs are came in contact with electrolytic solution , the bulbs gets light up due to the…

Q: A simulated seawater sample contains 0.571 M NaCl (aq) and 0.0583 M MgCl2 (aq). Assuming NaCl and…

A: Given, Molarity of NaCl = 0.571M. Molarity of MgCl2 = 0.0583M. The dissociation of NaCl and MgCl2…

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: If 30.0 g of NaOH is added to 0.800 L of 1.00 M Zn(NO₃)₂, what mass in grams of Zn(OH)₂ will be…

A: The mass of NaOH (sodium hydroxide) = 30.0 g The volume of Zn(NO3)2 (zinc nitrate) = 0.800 L The…

Q: If 0.235 g of KHP (MM = 204.22 g/mol) requires 16.78 mL of a NaOH (MM = 40.00 g/mol) solution to…

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Q: ation experiment, a 5.00-mL sample of sulfuric acid, H2SO4, from a car battery is diluted with…

A: In inorganic laboratories, titrations are carried out to calculate the unknown concentrations of the…

Q: 6. A preparation of soda ash is known to contain 98.6% NażCO3. If a 0.845-g sample requires 30.1 mL…

A: 6) Acid base neutralization reaction :-        In the acid base reaction the one gram equivalent…

Q: 2. If 20.0 mL of distilled water, 0.2 mL of 6.0M HC,H;O2(20, 1.2 mL of 1.0M NAC2H3O2(aq) and 0.5 mL…

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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: 0.400 g of solid NaCl is added to 50 mL of a 0.100 M MgCl2 solution. Assuming the final volume does…

A: Given data, Mass of NaCl=0.400gMolarity of MgCl2=0.100MVolume of MgCl2=50mL=0.050L

Q: Consider a solution prepared by adding 2.70 g acetic acid, CH3CO2H, to 122.8 g of H2O. (a) what is…

A: Given: Mass of water = 122.8 g. And mass of acetic acid = 2.70 g.

Q: An antacid tablet has a mass of 1.45 g and neutralizes 61.83 mL of a 0.291 M HCl solution. What is…

A: Given that -  Mass of antacid tablet = 1.45 g  Volume of Hydrochloric acid, HCl used = 61.83 mL…

Q: A 1.480 g sample of oxalic acid, H2C204, is placed in a 100.0-mL volumetric flask, which is then…

A: Given : Mass of oxalic acid = 1.480g

Q: Oxalic acid crystals have the molecular formula (CO2H)2 ∙2H2O. Calculate the molarity of a solution…

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

Q: The principal ingredient of certain commercial antacids is calcium carbonate, CaCO3. A student…

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Q: 1. What is the percentage of acetic acid, CH3COOH, in a sample of vinegar if 36.00 mL of 0.486 M…

A: The question is based on the concept of quantitative estimation. we have to calculate mass…

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: 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: 1.Determine the molarity of a potassium hydroxide solution if it takes 38.2 mL of the solution to…

A: Three numerical problems based on mole concept, which is to be accomplished.

Q: What is the concentration in molarity of an aqueous solution which contains 20.01% by mass…

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Q: When 20.00 mL of 1.005 M H,SO4 is titrated with a solution of NaOH, 44.68 mL of NaOH is required to…

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Q: What is the percentage of acetic acid, CH3COOH, in a sample of vinegar if 36.00 mL of 0.486 M NaOH…

A: Since you have posted multiple unrelated questions, we are entitled to answer the first only.

Q: What is the concentration in molarity of an aqueous solution which contains 26.41% by mass ethylene…

A: Molarity,M=4.42 mol/L

Q: If you add 250 ml of water to 250 ml of a 1.8M NaOH solution, what will the molarity of the diluted…

A: According to law of dilution, the number of moles of solute remains constant in the solution. During…

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

A: Apply M1V1 = M2V2

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

A: Acetic acid solution of unknown strength is titrated using sodium hydroxide solution. Recall the…

Q: Vinegar contains (among other things) acetic acid. What is the molarity of acetic acid (HC2H3O2) in…

A: Solution stoichiometry involves the calculation of concentration of solutions in the given…

Q: How many grams of sodium bromide,NaBr,must be dissolved to prepare 100.mL of a 0.196 M aqueous…

A: Molarity of NaBr Solution = 0.196 M   Volume of Solution = 100 mL   Volume of Solution = 0.1 L…

Q: When 4.36 g of sodium hydroxide are added to 125 mL of 3.80 ×10−1 M HCl, what is the concentration,…

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