The tetraethyl lead [Pb(C2H5 )4 ] in a 25.00-mL sample of aviation gasoline was shaken with 15.00mL of 0.02095 M I2 . The reaction is:  Pb(C2H5 )4 + I2 → Pb(C2H5  )3 I + C2H5I  After the reaction was complete, the unused I2 was titrated with 6.09mL of 0.03465 M Na2 S2O3.  Calculate the weight (in milligrams) of Pb(C2H5 )4 (MM 323.4) in each liter of the gasoline.  2S2O3 2- + I2 → 2I- + S4O6 2- Answer: 2.70 x 103 mg/L gasoline

Q: odometric titration of Vitamin C with sodium thiosulfate How many moles of iodine (I2) react with…

A: Iodometric titration is a redox titration which shows the disappearance of iodine at the end point.…

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A:

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Q: What are the molarities of NaC2H3O2 and AgNO3 after 8.00 mL of .300 M NaC2H3O2 is mixed with 12.00…

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

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Q: What volume of 0.145 MM HClO4HClO4 solution is needed to neutralize 49.00 mLmL of 8.55×10−2 MM…

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

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

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Q: Titration of 0.2342 g of pure Na,C,O, (134.0 g/mol) required 33.45 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 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: The balanced equation for the neutralization reaction of aqueous H2SO4 with aqueous KOH is shown.…

A:

Q: In standardizing a solution of NaOH (40 g/mol) against 1.431 g of KHP (204.22 g/mol) the analyst…

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

Q: A 1.065 g sample of magnesium oxide of 84.736% were treated with 50 mL of 1.017 N sulfuric acid, and…

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Q: If 12.50 mL of a KOH(aq) solution is required to titrate 0.218 g of KHP, what is the molar…

A: weight in g = 1 molmolecular weight in g×weight in g                     = Number of molsVolume in…

Q: 4. The tetraethyl lead [Pb(C2H5)4] in a 25.00-ml sample of aviation gasoline was shaken with 15.00mL…

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

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Q: 1. As the acid solution is titrated the pink color forms where the drop first enters the solution…

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

Q: Balanced eqation: 2 H3PO4 + 3 Ca(OH)2 → 6 HOH + Ca3(PO4)2 What is the molar concentration of 325.25…

A: H3PO4 is a strong acid and dissociates completely to produce 3 H+ ions. Similarly Ca(OH)2…

Q: 2. A standard solution of FeCls was prepared and its molar concentration was determined to be 2.000…

A: This is one of the dilution problem, here we are changing concentration of solution. In dilution…

Q: The balanced equation for the neutralization reaction of aqueous H2SO4 with aqueous KOH is shown.…

A: Given Titration of H2SO4 and KOH. To find The volume of KOH required to completely react with the…

Q: The balanced equation for the neutralization reaction of aqueous H2SO4 with aqueous KOH is shown.…

A: Balanced Reaction H2SO4 (aq) + 2KOH(aq) ---> K2SO4 (aq) + H2O(l)  Given Data Volume of H2SO4 =…

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

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Q: 2) Mohr's method uses the potassium chromate (K2CrO4) as indicator and this indicator makes the…

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

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

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

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

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Q: Oxalic acid (H2C2O4) is present in many plants. If 25.6 mL of 0.0200 M KMnO4 is needed to titrate a…

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Q: 2.413 g sample contains Na2CO3, NaHCO3 and inert material. This sample was solved in water and…

A:

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: 6. A student who wants to make chloride determination by Volbard method; a) To adjust the KSCN…

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

Q: 8. In the titration of nitrite using KMnO, if 20.00 ml of nitrite is required to react with 12.85 ml…

A: Here we are required to find the Molarity of NaNO2.

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

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Q: An aqueous solution contains .15 M Cl and .45 MT. A chemist wishes to do a fractional precipitation…

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Q: In the titration of a volume of 50 mL of a hydrochloric acid solution with Solution density 1.045 g…

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A: Solution No.of moles of KOH is , n = Molarity * Volume in L…

Q: It requires 35.7 mL of calcium hydroxide to reach the endpoint. A. What is the molarity of the…

A:

Q: Which of the statements given below is correct? A. Iodometry is a method in which 12 solution is…

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Q: A buffer was prepared by mixing 147.78 g (CH3)3N and 272.37 g (CH3)3NHCI in a solution with a total…

A:

Q: If 110.0 mL of 0.0030 MNa2SO4(aq) is saturated with CaSO4, how many grams of CaSO4 would be present…

A: Given: Concentration of Na2SO4 = 0.003 M And volume of solution = 110.0 mL = 0.110 L…

Q: The tetraethyl lead, Pb(C2H5)4 in a 25.00 mL sample of gasoline was shaken with 15.00 mL of  0.02095…

A: Solution: From the consumed moles of I2 we can calculate moles of tetraethyl lead from that we can…

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: 5 A student performing an iodine titration expected to use a total of approximately 4.8 mL of…

A: Here a student performed iodine titration . For this purpose he had taken Na2S2O3 in burette having…

Q: What volume of 0.5 M NaOH is required to react completely with 25.0 mL of 1.0 M H2CO3? Assume the…

A: Given, Note: 1000 mL = 1 L Molarity of NaOH solution = 0.5 M = 0.5 mol/L Volume of NaOH solution = ?…

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

A: Molarity of a solution =Number of moles of soluteVolume of solution in LNaOH + H2C2O4 →Na2C2O4 + 2…

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.