The tetraethyl lead [Pb(C2H5)4] in a 25-mL sample of aviation gasoline was shaken with 15.00 mL of 0.02095M l2. The reaction is Pb(C2H5)4 + I2 = Pb(C2H5)3I + C2H5I After the reaction was complete, the unused I2 was titrated with 6.09 mL of 0.03465 M sodium thiosulfate. Calculate the weight (in mg) of tetraethyl lead (MW = 323.4) in each liter of gasoline

Q: 5 Consider the following chemical equation: H₂A RbOH() Rb Ag+ H₂O A0.126 mol sample of impure…

A: We know that, At equivalence point the number of moles of H+ ions is equal to the number of moles of…

Q: The solubility product constant of K₂PdCl6 is 6.0 x 10 following the dissociation reaction:…

A: KCl is a strong electrolyte. It undergoes 100% dissociation to give K+ and Cl- ions. KCl(s) →water…

Q: A 400 mg sample of a 600 mg tablet is dissolved in 60 mL of 0.3 M H2SO4 and combined with 2 g of…

A:

Q: 16. 0.20-M Mn2* and 0.010-M Cd? are mixed in a test tube. If NaOH is gradually added into the test…

A: Ksp is the multiplication of solubility of corresponding ions with their appropriate powers. Here…

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

A: The objective of this question is to calculate the quantity in moles of HNO3 used in the titration.

Q: Potassium hydrogen phthalate (KHP) is often used as a primary standard in acid–base titrations. If…

A:

Q: In the titration of 25.00 mL of a water sample, it took 19.040 mL of 4.965x 10−3 M EDTA solution to…

A: EDTA is used to measure the hardness of water Water hardness is primarily due to calcium and…

Q: You are preparing standard acid and base solutions for the laboratory, using potassium hydrogen…

A: we have to calculate the molarity of HCl

Q: During the titration, 25.0 mL of the 0.0233 M saturated calcium hydroxide solution was titrated with…

A:

Q: A 0.6560 g mixture of KCN (MW=65.116 g/mol) and NaCN (MW=49.005 g/mol) was dissolved in water. AgNO3…

A: Given,Weight of sample mixture = 0.6560 gWeight of dried precipitate = 1.505 gRequired,…

Q: If a 0.2501 g sample of sodium bicarbonate (96.5% NaHCO3) is titrated with 0.1165 N sulfuric acid,…

A: Given data : g NaHCO3 = 0.2501 × (96.5/100) g N H2SO4= 0.1165 meq/mL Molar mass of NaHCO3 = 84 g/mol

Q: A solution of oxalic acid dihydrate (H2C2O4 * 2H2O) with a known concentration of 0.400 M H2C2O4 *…

A:

Q: 150.0 mL of 0.2105 M HNO3 was added in excess to 1.3415 g CaCO3 (100.09 g/mol). The excess acid was…

A: Given - volume of HNO3 = 150.0 mL             Molarity of HNO3 = 0.2105 M             Mass of CaCO3…

Q: 2- In the analysis of a sample for KH2PO4 content, a sample weighing 0.4329 g required 25.08 mL of…

A:

Q: Calculate the concentration of IO3 in a 1.19 mM Pb(NO3)₂ solution saturated with Pb(IO3)2. The Ksp…

A: The reaction is represented as follows: Pb(NO3)2 → Pb2++2NO3- Concentration of Pb(NO3)2 = 1.19 mM =…

Q: What is the identity of the precipitate that forms when 70 mL of 0.1 M BaCl2 reacts with 65 mL of…

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Q: 1) In the standardization of a sodium hydroxide (NaOH) solution, 1.0211g of potassium biphthalate…

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Q: To 1.034 g of bay leaves oxalic acid (H2C2O4) is extracted with water. The solution of oxalic acid…

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Q: a 0.2501 g sample of sodium bicarbonate (96.5% NaHCO3) is titrated with 0.1165 N sulfuric acid, what…

A: Given-> Weight of NaHCO3 = 0.2501 gm Normality of H2SO4 = 0.1165 N

Q: A student used 30.06 mL of silver nitrate to titrate a 0.108 gram sample of primary standard sodium…

A: Mass of sodium chloride is 0.108 g. Molar mass of sodium chloride is 58.44 g/mol.

Q: 50.00 mL of a solution containing 0.15 M CH2 (CO2 H)2 and 0.020 M MnSO4  Calculate the mass in g of…

A:

Q: 2MnO4— +  5C2O42— + 16H+ 2Mn2+ + 10CO2 + 8H2O A solution of KMnO4 was prepared and 50.99 mL was…

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Q: 25 mL 0.125 M aluminum acetate is combined with 35 mL 0.300 M rubidium hydroxide, and the reaction…

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Q: 4. In an experiment to determine the concentration of an HCCI sample of unknown concentration, 0.1 M…

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Q: A 10.0 mL aliquot of H2 SO4 solution was diluted to 100.0 mL. Then 25.0 mL aliquot of the diluted H2…

A: Here we are required to find the molar concentration of original sulphuric acid

Q: A solution of oxalic acid dihydrate (H₂C₂O₄･2H₂O) with a known concentration of 0.400 M H₂C₂O₄･2H₂O…

A: At equivalent point mole to stoichiometry is equal of both reactants

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

A: The reaction of HNO3 and Ca(OH)2 is, In the given reaction moles ratio between HNO3 and Ca(OH)2 is…

Q: A 25.00-mL sample of a household cleaning solution was diluted to 250.0 mL in a volumetric flask. A…

A: Given - Volume of initial solution = 25.00 mL Volume of final diluted solution = 250.0 mL Volume of…

Q: molar concentration of the acid

A:

Q: 25.00 mL of a sample containing Hg2²+ was titrated with 0.05789 M of KIO3, requiring 35.69 mL to…

A: In this question we have to calculate the concentration of Hg22+ in the sample.

Q: 100.0 cm3 water is titrated with 0.0049 M ascorbic acid solution. What is the analytical…

A:

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: nL sample of the stock HC>H;O2 solution was ti | sodium hydroxide to the equivalence point, usi The…

A: As we know, Acid base reation takes place. HC7H5O2(aq.) + NaOH(aq.) ----> C7H5O2Na(aq.) + H2O(l)…

Q: Excess solid Ni(OH)2 was added to water and the resulting solution was allowed to stand for several…

A: In order to find Ksp, we need dissociation equation of Ni(OH)2(s) and equation for reaction with…

Q: Titration of 0.2121 g of primary standard Na2C204 (133.999 g/mol) required 21.66 mL of KMN04…

A: Given: The mass of the primary standard is 0.2121 g. The molar mass of sodium oxalate is 133.999…

Q: Fe3+ in 50 mL solution, which is known to contain Fe3+, was precipitated as Fe(OH)3 and after…

A: Given that V = 50.0 mL Mass of Fe2O3 = 0.3994 g

Q: A0.184 g sample of Na C204 was titrated with KMNO4. The sample required 18.83 mL of KMNO4 to reach…

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Q: 25.00 ml of the phosphorus acid solution above was titrated with 0.350 M NaOH titrant using the…

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Precipitation Titration

Precipitation analysis is used to analyze drugs, and to measure the salt content in food and beverages. It is an important concept from the examination point of view many practical questions are asked on the topic. This topic is significant in the professional exams for both undergraduate and graduate courses, especially for