Iodometric titration of Vitamin C with sodium thiosulfate How many moles of iodine (I2) react with the thiosulfate?  (reacts in a 1:2 ratio) 5.66 x 10-4 M of sodium thiosulfate used in titration 0.62 g in 0.01 M in 250 mL conical flask 0.00075 M of iodine in the conical flask  0.00025 M of potassium iodate

Q: A NaOH solution of unknown concentration is titrated with 0.250 M HCl. 20.53 mL of the titrant is…

A: 1. Concentration of NaOH Solution To find the concentration of the NaOH solution, we use the…

Q: 39 Which of the following acid-base titrations initially forms a buffer?

A: 39- A buffer solution is defined as an aqueous solution consisting of a mixture of a weak acid (WA)…

Q: You analyze the Free SO2 level for the red wine using the Aeration Oxidation or Aspiration Method.…

A: The question is based on the titration.  We are titrating SO2 with a strong base. We need to…

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: We have to calculate the Molarity of KMno4 solution

Q: Titration of 0.2342 g of pure Na,C,0, (134.0 g/mol) required 13.45 ml of KMNO, solution according to…

A: 1- Calculate the moles of C2O42- ion :  moles = [ mass / Molar mass ]  moles = [ 0.2342mol /…

Q: Determination #1 Determination #2 Determination #3 Final NaOH Burette Reading 37.65 mL 28.35 mL…

A: The neutralization reaction between NaOH and H2SO4 is represented as  2NaOH(aq)+ H2SO4(aq)---->…

Q: When 48.0 mL of Sr(OH)2 solution was used to titrate 25.0 mL of 0.40 M HCI, the indicator,…

A: A titration is a technique that uses a known concentration of a solution to determine the…

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

A: Given : moles of Ca(OH)2 present = 0.00333 mol And volume of Ca(OH)2 solution = 50.0 mL

Q: Starting with 2.0 g of hand sanitizer in 10 mL of methanol (density of methanol = 0.791 g/mL), the…

A: Given that

Q: If 20.0 mL of 0.500 M Ca(OH)2 is titrated with 0.250 M HNO3. what volume of nitric acid is required…

A:

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: 1- First calculate the moles of C2O42- ion :  moles = [ mass / molar mass ]  moles = [ 0.2342g /…

Q: Calculate the pAg when 29.25 mL of 0.1140 MF is titrated with 27.00 mL of 0.1250 M AGNO3 titrant.…

A: pAg =3.14

Q: According to the reaction below: if 28.31 mL of KOH with an unknown concentration were titrated…

A: Potassium hydroxide reacts with sulfuric acid to form potassium sulfate and water. The equation for…

Q: If the calcium concentration in blood plasma is 8.8 mg/dL and Kp for calcium diphosphate is 8.64 ×…

A: mg/dl = 0.01 g/l 8.8 mg/dl = 8.8*0.01 g/l = 0.088 g/l Molecular mass of calcium = 40g 0.088g/l /40g…

Q: 23 The titration of 25.0 mL of an unknown concentration H2SO4 solution requires 83.6 mL of 0.12 M…

A: The titration of 25.0 mL of an unknown concentration sulfuric acid solution requires 83.6 mL of 0.12…

Q: In the KMNO4 titration, the permanganate went from a +7 oxidation state to a +2 state. The FeCl2…

A:

Q: A certain local brand of “healthy” chicharon was found to contain 0.4132 g of NaCl after Fajan…

A: Given :  Mass of NaCl = 0.4132 gm  Molar mass of NaCl = 58.44 g/mol  Molar mass of Na+ = 22.99 g/mol…

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: 6.2 ml of 0.34 M Ba(OH)2 was titrated with 30.0 ml of HCI, what is the concentration of HCI ? 2HCI +…

A: The given data contains, Volume of Ba(OH)2 V1=6.2 mlMolarity of Ba(OH)2 M1=0.34 MVolume of HCl V2=30…

Q: An unknown volume of 2.50 M H,SO, was diluted to 50 mL using water The diluted solution was titrated…

A: Given: Molarity of concentrated H2SO4 solution = 2.50 M Volume of diluted H2SO4 solution = 50 mL…

Q: Titration of 0.2342 g of pure Na,C,0, (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: What is the pH at the equivalence point in the titration of a 22.4 mL sample of a 0.326 M aqueous…

A: Concentration of HF(M1) = 0.326 MConcentration of KOH(M2) = 0.484 MVolume of HF(V1) = 22.4 mL

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: A 60.0 ml solution of a weak acid, 0.300 M HA is titrated with a 0.200M NaOH solution (Ka, HA = 7.90…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: What is the silver ion concentration in a solution prepared by mixing 413 mL 0.370 M silver nitrate…

A: When silver nitrate is mixed with sodium phosphate silver phosphate gets precipitated. The equation…

Q: What is the nickel ion concentration in a solution prepared by mixing 419 mL of 0.421 M nickel…

A: 419 mL of 0.421 M nickel nitrate is mixed with 457 mL of 0.207 M sodium hydroxide. The Ksp of…

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: Titration of 0.2342 g of pure Na,C,0, (134.0 g/mol) required 33.45 ml of KMNO, solution according to…

A:

Q: Given: NaX, Ksp = 8 x 10-5 NaY, Ksp = 7 x 10-12 NaA, Ksp = 6 x 10-7 NaB, Ksp = 5 x 10-⁹ The most…

A: Low Ksp =  less soluble (precipitate out first)    High Ksp = more soluble   When we add a…

Q: In a titration 36.7 mL of HBr solution is put In a flask with a few drops of phenolphthalein and…

A: Given: The volume of HBr is 36.7 mL. The volume of Sr(OH)2 is 51.4 mL. The molarity of Sr(OH)2 is…

Q: Final NaOH Burette Reading 20.72 mL 41.54 mL 21.59 mL Initial NaOH Burette Reading 0.12 mL 20.72 mL…

A:

Q: 84 mL of 0.060 M NaF is mixed with 28 mL of 0.15 M Sr(NO3)2. Calculate the concentration of Sr2+ in…

A: Ans :- Option (C) i.e. 0.015 M is the correct answer.Explanation :- No. of moles of F- = Molarity x…

Q: According to the reaction below: if 35.48 mL of H2SO4 with an unknown concentration were titrated…

A: Given neutralisation reaction; H2SO4 +2KOH  → 2H2O + K2SO4 Volume of H2SO4 solution titrated against…

Q: What mass of AgCI is precipitated from the reaction of 25.0 mL of 0.100M AgNO3 and excess KCI

A: The objective of this question is to find out the mass of AgCl that is precipitated from the…

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 test tube contains: . 5.00 mL of 0.002M iron (III) nitrate . 4.50 mL of 0.002M potassium…

A:

Q: Direct titration: 10.90 ± 0.02 mL of an unknown KHP solution required 11.72 ± 0.02 mL of 0.1090 ±…

A: To calculate the concentration of KHP in the unknown solution reported with absolute uncertainty.

Q: Y Part A As a technician in a large pharmaceutical research firm, you need to produce 450. mL of…

A: part A: 450. ml of 1.00 M potassium phosphate buffer = 0.450 L * 1.00 mole / L = 0.450 mole  Let…

Q: 2 Match the following acid-base titration plots with the correct titrant and sample. Vo=20.00 mL (1)…

A: The question is based on the concept of titrations. We need to identify the nature of acid and base…

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