A mixture containing only KCl (74.55 g/mol) & NaBr (102.89 g/mol) was analyzed by the Mohr method. A 0.50 g sample which was dissolved in 50 mL of water and treated with 0.500 mL of 0.0010 M sodium chromate, required 10 mL of 0.50 M AgNO3 for complete titration. AgCl FW=143.32 g/mol , AgBr FW=187.77 g/mol.  What type of precipitation method was used? What is the suitable indicator in the titration? What is the %w/w KCl in the sample? What is the %w/w NaBr in the sample?Single choice. What is the expected end point?

Q: In a titration of HNO₃, you add a few drops of phenol-phthalein indicator to 50.00 mL of acid in a…

A: The total volume of acid we have taken to finally reach the endpoint = 50 + 30 = 80 mL And the total…

Q: 4. A 0.3147-g sample of a primary-standard grade Na 2C 2O 4 was dissolved in dilute H 2SO 4 and…

A: The given equation is as follows --- 2 MnO4- + 5 C2O42- + 16 H+ →  2 Mn2+ + 10 CO2(g) + 8 H2O…

Q: A 0.9600 M NaOH solution was diluted with a factor of 4. Then the diluted solution of NaOH was…

A: (i) The initial concentration of NaOH = 0.960/4 = 0.2400 M. From the given table the volume of NaOH…

Q: The correct indicator was added to 25.00 mL of a 0.1350 M solution of butanoic acid (CH;(CH2)¿COOH)…

A:

Q: 25.0 mL aliquots of a 0.106 mol/L Sn2+(aq) solution was used to standardize an acidified potassium…

A: Titrations are carried out in chemical laboratories to discover concentration of unknown solutions…

Q: A 11.00 gram sample of Vodka was analysed for its alcohol content. The sample was placed in a300 mL…

A: The volume of 1.00 L is equal to 1000. mL. The number of mole (n) of Cr2O72- is calculated as shown…

Q: In a titration experiment based upon the reaction shown below, 25.49 mL of an acidified Fe2+…

A:

Q: 400 mg of a butter sample was heated and some water was added. After shaking and filtration 10 ml…

A: Mass percent of NaCl can be calculated as given below.

Q: A10g sample of a substance of unknown molar mass requires 40 mL of standard solution for titration;…

A: Volume of the standard solution = 40 ml or 0.04 L Let the concentration (M) of the standard solution…

Q: 3. Traces of heavy metals, such as Cu* and Pb²*, in water bodies can be separated through fractional…

A:

Q: The Kjeldahl method was used to determine the nitrogen content of a soil sample. 25 g soil sample…

A: Solution: We know Kjeldahl method is used to determine the nitrogen content of the any sample.…

Q: A dilute solution of an unknown weak monoprotic acid (HX) required a 28.62 mL titration of 0.1084 M…

A:

Q: Addition of an excess silver nitrate to a 0.5012 g sample yielded a mixture of AgCl and Agl that…

A: Excess silver nitrate was added to a mixture containing NH4I and NH4Cl.…

Q: 20 mL of a mixture of ferrous sulfate (FeSO4) and ferric sulfate Fe₂(SO4)3 was titrated with 6.5 mL…

A: In this process at first the permanganate consumed will be for only Fe2+. All Fe3+ will be…

Q: Titration of 0.2342 g of pure Na,C,O, (134.0 g/mol) required 13.45 ml of KMNO, solution according to…

A: Number of moles = mass/molar mass  Molarity = number of moles/volume of solution (in L)

Q: A 50.00-ML water sample was titrated with 0.0250 M EDTA to determine its calcium content. The…

A: The question can be solved using the law of equivalence. The detailed solution is shown below.

Q: An impure sample of potassium hydrogen phthalate (KHP) was titrated to determine the percent…

A: We will use stoichiometry of the reaction to get the answer.

Q: A 0.9600 M NaOH solution was diluted with a factor of 4. Then the diluted solution of NaOH was…

A: As you have posted multiple questions in a single request, we will solve the first question for you.…

Q: Consider an impure sample of 25.20% Na2CO3.  How many grams of the sample must be dissolved in a…

A: The question is based on quantitative estimation. We have to calculate how much  sodium carbonate…

Q: A 20.0 mL sample of an HCl solution is titrated with 27.4 mL of a standard solution of Ba(OH)2. The…

A:

Q: 0.300 g of a nitrogen-containing sample is analyzed by the Kjeldahl method and the released ammonia…

A: The Kjeldahl method is a method for the quantitative determination of nitrogen contained in organic…

Q: In an analytical laboratory that analyzes BOD, the titrant solution of sodium thiosulphate must be…

A: A question based on mole concept that is to be accomplished.

Q: A 50.0 mL solution of Ca(OH)2 with an unknown concentration was titrated with 0.340 M HNO3. To reach…

A: According to the Law of conservation of mass " all atoms of different elements must be equal on both…

Q: A sample of antacid was dissolved in 50.00 mL of 0.300 M HCI solution, then back-titrated to the…

A: Amount of HCl reacted with antacid sample can be calculated using back titration.

Q: Limestone consists mainly of the mineral calcite, CaCO3.  The carbonate content of 0.5143 g of…

A:

Q: 1. (10) The amount of protein in a sample of cheese can be determined by Kjeldahl analysis for…

A: Answer:- this question is answered by using the simple concept of stoichiometry which involves the…

Q: A 0.4108-g sample of primary-standard Na2 CO3 was treated with 46.50 mL of dilute perchloric acid.…

A:

Q: The following solutions are needed to be prepared for the titration procedure: 1. 20 mL of 2 M HCl…

A: Given: Mass of Fe(OH)n used = 1.0867 g Volume of HCl solution used = 20 mL = 0.020 L…

Q: 1. (a) The solubility product of a sparingly soluble salt, XF2, was determined by titration and…

A: General titration equation is  M1V1=M2V2  M-> MolarityV->Volume in this question the titre is…

Q: A 50.00 mL sample containing La3+ was titrated with sodium oxalate to precipitate La,(C204)3, which…

A: Molarity is defined as “the mole of the solute per unit volume of the solution”. It is represented…

Q: A sample of solid Ca(OH)2 was stirred in water at a certain temperature until the solution contained…

A: Given, Volume of Ca(OH)2, V1  =450 mL=450×10-3L=0.450 L Molarity of Ca(OH)2  M1= to find Valency…

Q: A 0.3147-g sample of a primary-standard grade Na2C2O4 was dissolved in dilute H2SO4 and titrated…

A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the…

Q: A solution was prepared by dissolving 435 mg of K3Fe(CN)6 in enough water to give 945 mL of…

A: As the question contains multiple sub-parts so only the first three are solved in this solution. If…

Q: If a 1.25 g sample of magnesium oxide (98.9%) were titrated with 70 ml of 104 N of sulfuric acid…

A:

Q: A 1.7483-g sample containing Al(NO:)s, AICI, and inert material was dissolved in acid and divided…

A: Percentage composition of a sample can be calculated using the molar mass of the compounds present…

Q: What volume of 0,955 mol·dm–3 HCl solution (in mL or cm3), is required to titrate 2,152 g of Na2CO3…

A:

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. She carefully weighs…

A: Since, you have asked multiple question, we will solve the first question for you. If you want any…

Q: 1. A 0.4126-g sample of primary-standard Na2CO3 was treated with 40.00 mL of dilute perchloric acid.…

A: Given:-           Mole of  Na2CO3 = 0.4126 g/106 gmol = 3.89 mmol Mole of HClO4 neutralize required…

Q: A 27.56 mL portion of a 0.337 M solution of hydrochloric acid, a monoprotic acid, is to be titrated…

A: The chemical reaction between KOH and hydrochloric acid(HCl):                   KOH + HCl → KCl +…

Q: 2.4414 g sample containing KCI, K,SO, and inert materials was dissolved in sufficient water to give…

A: Hi there! Since you have posted multiple questions, we will answer the first question for you.

Q: A local company sent you their green alternative for window cleaner to be tested for percent (w/v)…

A: Titration question

Q: A solution containing KCl (74.551 g/mol) is analyzed by the Mohr method. A 0.5863 g sample is…

A: Solutions                                 Given that A solution containing KCl (74.551 g/mol) is…

Q: A 0.1500 g of salt sample was analyzed for percent chloride (35.45 g/mol) content. The titration of…

A: Concentration (Molarity) of solution can be calculated using the formula, Molarity = Moles of…

Q: The amount of protein in a sample of cheese is determined by a Kjeldahl analysis  for nitrogen.…

A: Given data,Molarity of HCl=0.1047MVolume of HCl=50mL=0.050LMolarity of NaOH=0.1183MVolume of…

Q: Oxalic acid dihydrate (H2C204 2H2O) can be used to standardize NaOH solution through acid-base…

A: During titration, number of moles of base and number of moles of acid should be equal. In the…

Q: Titration of 0.2342 g of pure Na,C,O, (134.0 g/mol) required 13.45 ml of KMNO, solution according to…

A: Given :- mass of Na2C2O4 = 0.2342 g  Molar mass of Na2C2O4 = 134.0 g/mol   Volume of KMnO4 solution…

Q: A sample of BaCO3 (molar mass = 197.33 g/mol) has 25.00 mL of HCl (0.2120 M) added: BaCO3 + 2 HCl →…

A:

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. He carefully weighs…

A: Given : Mass of oxalic acid = 18mg Volume of distilled water = 250ml

Q: A mixture containing only KCl (74.55 g/mol) & NaBr (102.89 g/mol) was analyzed by the Mohr method. A…

A: Chloride ion concentration of an unknown sample can be calculated using Mohr method.  Mohr method is…