8. When 38.0 mL of 0.1250 M H2SO4 is added to 100 mL of a solution of PbI2, a precipitate of PBSO4 forms. The PBSO4 is then filtered from the solution, dried, and weighed. If the recovered PbSO4 is found to have a mass of 0.0471g, what was the concentration of iodide ions in the original solution The answer is

Q: chemist crushes a 4.500g sample of the shell to a fine powder and titrates it to the endpoint with…

A: The amount of sample crushed= 4.500g Volume of HCl = 172.mL Molarity of HCl =0.380M  The balanced…

Q: When 38.0 mL of 0.1250 M H2SO4 is added to 100. mL of a solution of Pb(NO3)2, a precipitate of PbS04…

A: Given: Volume of H2SO4 = 38.0 mL Concentration of H2SO4 = 0.1250 M Volume of Pb(NO3)2 = 100.0 mL…

Q: A student weighs out 1.215 g of an impure KHP, dissolves the sample in 100. mL DI water and titrates…

A: kindly find the answer attached

Q: The amount of hydrogen peroxide (H2O2) in a sample of hair bleach was determined by titration with a…

A: Since, Number of moles= Concentration× Volume

Q: a.) determine the volume (in mL) of 14.6 M phosphoric acid required to prepare 100 mL of 0.650 M…

A: a) The volume of 14.6 M phosphoric acid required to prepare 100 mL 0f 0.650 M phosphoric acid we…

Q: In order to quantify the amount of dissolved oxygen in water, the Winkler method could be used. The…

A: Potassium iodate reacts with excess potassium iodide and iodine is liberated. Iodine reacts with…

Q: An analytical chemist has a solution containing chloride ion, Cl− . She decides to determine the…

A: A qualitative and a quantitative analysis is the best choice becausewe need to determine the…

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

A: Firstly, the number of moles of oxalic acid is calculated. Oxalic acid has a molar mass of 90.03…

Q: A 20.0 mL solution of 0.200 M H;PO4 was fully titrated with 70.0 mL of a solution of calcium…

A: Given : Concentration of H3PO4 = 0.200 M Volume of H3PO4 solution = 20.0 mL And volume of calcium…

Q: 6. A student mixes equal volumes of 1.0 M solutions of tin(II) chloride and copper (II) sulfate and…

A: Precipitation reaction refers to the formation of an insoluble compound forms in a given reaction.…

Q: A 2.5624-g sample of a pure solid alkali metal chloride is dissolved in water and treated with…

A:

Q: If 20.0 g of LiOH is added to 0.750 L of 1.00 M Cd(NO₃)₂, how many grams of precipitate will be…

A: The balanced equation for this precipitation reaction is: Cd(NO3)2 + 2LiOH → Cd(OH)2 + 2LiNO3 The…

Q: A solution contains 0.0240 M Pb²+ (aq) and 0.0240 M Sr² + (aq). If you add SO2 (aq), what will be…

A:

Q: 19- A sample of limestone is titrated for its value as a neutralizing agent. A sample weighing 1.000…

A: Limestone is CaCO3 Moles of CaCO3 = 1 / 100 = 0.01

Q: 11. A suspension of milk of magnesia, Mg(OH)2, is analysed by back titration. A 1.0391 g sample is…

A: Solutions                   Calculate the weight percentage of magnesium hydroxide in the sample..

Q: Titration of a 25.00 mL sample of acid rain required 12.4 mL of 0.009879 M NaOH to reach the end…

A: Volume of sulphuric acid,V1 = 25.00mL Volume of NaOH,V2 = 12.4mL Concentration of NaOH,M2 =…

Q: When 38.0 mL of 0.1250 M H2SO4 is added to 100. mL of a solution of PbBr2, a precipitate of PbSO4…

A: Mass of PbSO4 = 0.0471 g Molar mass of PbSO4 =303.28 g/mol Volume of PbBr2 = 100 mL

Q: A solution was prepared by mixing 20.00 mL of 0.100 M HNO3 and 120.00 mL of 0.200M HNO3. Calculate…

A: Hello. Since your question has multiple questions, we will solve the first question for you. If you…

Q: A sample contains BaCl2 plus inert matter. What weight must be taken so that when the solution is…

A: When barium chloride is titrated with silver nitrate, the corresponding chemical equation is:…

Q: 6.) One way to determine the amount of nitrogen in a sample is through a method called Kjeldahl…

A: HCl is monobasic acid and NaOH is monoacidic base Therefore, for neutralization, moles of NaOH used…

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: H2. Titrations are performed by a scientist in the laboratory as follows: a solution of deuterated…

A: A laboratory technique where the concentration of an unknown solution is determined using the volume…

Q: 4. A solution of malonic acid, H₂C3H2O4, was standardized by titration with 0.1000 M NaOH solution.…

A:

Q: A 0.7209-g solid mixture containing MgCl2 is dissolved in water and treated with an excess of AgNO3,…

A: Given : Mass of MgCl2 sample = 0.7209 g And mass of AgCl = 1.032 g Molar mass of AgCl = Atomic mass…

Q: 0.5366 g of an KHP sample of unknown purity was massed. The sample was dissolved in approximately…

A: The reaction between NaOH and KHP can be shown as,

Q: A solution of 655 mL of 0.852 M CO(NH2)2 is mixed with a solution of 432 mL of 0.487 M CO(NH2)2. It…

A: We will first calculate the number of milimoles of CO(NH2)2 of each solution and add them to get…

Q: 100.0 mL of 0.60 M aqueous Pb(NO3)2 is mixed with excess aqueous KI. What mass of precipitate is…

A:

Q: A 3.00 mL bleach (NaOCI is the active ingredient) sample is mixed with potassium iodide and acid to…

A: The overall reaction taking place during this titration is- ClO- +2S2O32- +2H+→Cl- +S4O62- + H2O…

Q: When 50.0 mL of a 0.3000 M AgNO3 solution is added to (4.65x10^1) mL of a solution of MgCl₂, an AgCl…

A:

Q: 1a) complete the balanced overall ionic equation for the mixing of these two solutions. 2Na+(aq) +…

A:

Q: A solution is prepared by pipetting 25.0 mL of 0.350 M CuCl2 into a 100.0 mL volumetric flask,…

A: Concentration in terms of molarity is defined as the moles of solute present per litre of the…

Q: All the chloride in a 5.00 g sample of an unknown metal chloride is precipitated as AgCl with 70.9…

A:

Q: A 185.0 mL sample of 1.200 M Pb(NO₃)₂ is mixed with 52.50 mL of 1.500 M NaCl, and the PbCl₂…

A: Answer:When solutions of two different substances are mixed and formation of precipitate takes place…

Q: A 4.277-g sample of Alz(SO4)a was dissolved in distilled water to make a total volume of 250.0 mL of…

A: Answer :- Molar Concentration of sulfate SO42- ion in solution B = 0.015 M…

Q: The molar mass of a metal carbonate can be determined by adding an excess of HCl to completely react…

A: The objective of the question is to find the molar mass of a metal carbonate (MCO3) and identify the…

Q: 4. A solution of 75 mL Na2CO3 is neutralized with 67.2 mL of 0.1065 M HCI. In the another analysis,…

A: Please find the attached images for the answer

Q: 6. The purity of a sample of sodium oxalate, Na2C2O4, is determined by titrating with a standard…

A:

Q: What is the concentration of salicylate in mg/dL in an unknown salicylate solution whose absorbance…

A: Graph is