i need the answer quickly A NaCl-KCI mixture weighing 2.5005 g wasdissolved in water and diluted to a total volumeof 100 mL. A 10-mL aliquot of this solution wasthen passed through an acid-form cation-exchange column. It Required 29.2mL of 0.1032M NAOH to titrate the resultant solution comingthrough the column. Calculate the percentage ofKCI and the total percentage of Cl in the mixture

Answered: A NaCl-KCI mixture weighing 2.5005 g…

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter16: Applications Of Neutralization Titrations

Section: Chapter Questions

Problem 16.20QAP

See similar textbooks

Similar questions

The Handbook of Chemistry and Physics (http://openstaxcollege.org/l/16Handbook) gives solubilities of the following compounds in grams per 100 mL of water. Because these compounds are only slightly soluble, assume that the volume does not change on dissolution and calculate the solubility product for each. (a) BaSiF6, 0.026 g/100 mL (contains SiF62- ions) (b) Ce(IO3)4, 1.5102 g/100 mL (c) Gd2(SO4)3, 3.98 g/100 mL (d) (NH4)2PtBr6, 0.59 g/100 mL (contains PtBr62- ions)
app.101edu.co Question 16 of 25 A 185.0 mL sample of 1.200 M Pb(NO3), is mixed with 139.50 mL of 1.500 M NaCl, and the PbCl, precipitate is filtered from the solution. Then 200.0 mL of 3.000 M NaBr is added to the remaining solution, and the PbBr2 precipitate is also collected and dried. What is the mass (in grams) of the PbBr2 precipitate, assuming the yield in each precipitation step is 100%? 1 3 6. 8. 6. +/- 2. LO
What is the molar solubility (in mols/L)of silver chloride in 2.00 M NH3(aq) given that Kgp of AGCI = 1.77x10-10 and Kf of Ag(NH3)2* is 1.70×107? Express your answer in decimal notation rounded to three significant figures.
1. A 0.3516 g sample of commercial phosphate detergent was ignited at a heat to destroy the organic matter. The residue was taken up in hot HCI which converted P to H3PO4. The phosphate was precipitated as MGNH4PO4.6H2O by addition of Mg+ followed by aqueous NH3. After being filtered and washed, the precipitate was converted to Mg2P2O7 by ignition at 1000 OC. This residue weighed 0.2161 g. Calculate the percent P (30.974) in the sample? Ans 17.11%
Q2) a) Explain the titration curve (variation of pH with respect to addition of titrant) with suitable diagram and reactions involved when a strong base is added as titrant to a weak acid as analyte. (b) The saline water discharged from a thermal desalination plant was analyzed and it has following composition.(i) If the discharged water sample contains 4.2 g of potassiumchloride (KCl) per 500 mL of solution, determine its molarity.(ii) The sample contains CaCl2 and its concentration was found to be 0.04M. Calculate grams of CaCl2 present in 100 mL of the sample. (c) In complexometric titration, explain why a constant pH need to be maintained during estimation of metal ions using EDTA.
A saturated solution of magnesium hydroxide is prepared and the excess solid magneisum hydorixed is allowed to settle. A 25.0 mL aliquot of the saturated solution is withdrawn and transfered to a flask, two drops of inficator are added. A 0.00053 M HCL is dispensed from a buret into a solution. The solution changes color after the addition of 13.2 mL. What is the Ksp of magnesium hydroxide?
A 20.00 mL aliquot of lactic acid solution (HCH3H5O3) was titrated with 0.0980 M KOH(aq) using both an indicator and a pH meter. Ka (HCH3H5O3), is 1.38 x10-4. A total of 28.64 mL of 0.0980 M KOH(aq) was required to reach the equivalence point 1. Calculate the molarity of the lactic acid solution. 2. Calculate the pH of the lactic acid solution 3. Calculate the pH and [CH3H5O3-] at the half-equivalence point. 4. Calculate the pH at the equivalence point of the titration. 5. Suggest an appropriate indicator for titration. 6. Calculate the pH of the solution after 10.00 mL of 0.0980 M NaOH(aq) was added
0.0585 g Na2C2O4 10 mL to adjust KMnO4 solution prepared in 0.1 M'pure water, 2 M H2SO4 added, heating process and 8.4 mL titrant as a result of titration it's spin out. Calculate the actual concentration of potassium permanganate accordingly
11. (ii) A student was given 400 cm of aqueous ammonia solution, NH,(ag), The student was asked to determine how many moles of NH, had been dissolved to prepare the solution. The student titrated 25.0cm of NH.(ag) and found that it reacted exactiy with 32.5cm3 of 0.100 mol dm sulturic acid. The equation for this reaction is shown below. 2NH,(aq) + H,SO,(aq) → (NH)SO,(aq) Calculate the amount, in moles, of NH, in the original 400 cm3 solution. mol answer =
What is the molar solubility (in mols/L)of silver chloride in 2.00 M NH3(aq) given that Ksp of AgCl = 1.77x10-10 and Kf of Ag(NH3)2* is 1.70x107? Express your answer in decimal notation rounded to three significant figures.
The arsenic in a 2.345g sample of a pesticide was converted to H 3 AsO4 by suitable treatment.The acid was then neutralized, and 60.00 ml of 0.06781M AgNO 3 was added to precipitate thearsenic quantitatively as Ag 3 AsO4. The excess Ag+ in the filtrate and washings from theprecipitate was titrated with 15.27 ml of 0.123 M KSCN; the reaction wasAg+ + SCN- → AgSCN(s)Calculate the percentage As 2 O 3 in the sample.
The precipitation of some ion can be treated as completed if the mass of the remaining ions in precipitatedsolution will be less than 0.0001 g (the minimal mass can be weighed using typical lab balance). Calculate: (a) the molarity of Ag* ions in 100 mL of solution, which corresponds to 0.0001 g of remaining Ag* ions; (b) the molarity of (NH4)2CrO, needed to get saturated solution of Ag2CrOA (pK° sp = 11.92) with remainingconcentration of Ag* equal to found on the previous step.

SEE MORE QUESTIONS

Recommended textbooks for you

Fundamentals Of Analytical Chemistry

Chemistry

ISBN:

9781285640686

Author:

Skoog

Publisher:

Cengage

Chemistry: The Molecular Science

Chemistry

ISBN:

9781285199047

Author:

John W. Moore, Conrad L. Stanitski

Publisher:

Cengage Learning

Chemistry by OpenStax (2015-05-04)

Chemistry

ISBN:

9781938168390

Author:

Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Publisher:

OpenStax

Fundamentals Of Analytical Chemistry

Chemistry

ISBN:

9781285640686

Author:

Skoog

Publisher:

Cengage

Chemistry: The Molecular Science

Chemistry

ISBN:

9781285199047

Author:

John W. Moore, Conrad L. Stanitski

Publisher:

Cengage Learning

Chemistry by OpenStax (2015-05-04)

Chemistry

ISBN:

9781938168390

Author:

Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Publisher:

OpenStax

SEE MORE TEXTBOOKS