A 0.574-g sample of a chlorocarbon compound was analyzed by burning it in oxygen and collecting the evolved gases in a solution of NaOH. After neutralizing, the sample was treated with 26.21 mL of a 0.28 M AgNO3 solution. This precipitated the chloride (Cl-) out as AgCl and left an excess of AgNO3. The excess AgNO3 was titrated with 0.122 M KSCN and required 24.91 mL to reach the endpoint in a Volhard titration.Calculate the % w/w Cl– (35.45 g/mol) in the sample. Provide your answer to 2 places after the decimal point and without units.Reactions: Cl– + Ag+ → AgCl(s) Reaction 1Ag+ + SCN– → AgSCN(s) Reaction 2

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Answered: Calculate the % w/w Cl– (35.45 g/mol)…

Chemistry

9th Edition

ISBN:9781133611097

Author:Steven S. Zumdahl

Publisher:Steven S. Zumdahl

Chapter4: Types Of Chemical Reactions And Solution Stoichiometry

Section: Chapter Questions

Problem 135CP: A 0.500-L sample of H2SO4 solution was analyzed by taking a 100.0-mL aliquot and adding 50.0 mL of...

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A 0.574-g sample of a chlorocarbon compound was analyzed by burning it in oxygen and collecting the evolved gases in a solution of NaOH. After neutralizing, the sample was treated with 26.21 mL of a 0.28 M AgNO₃ solution. This precipitated the chloride (Cl^-) out as AgCl and left an excess of AgNO₃. The excess AgNO₃ was titrated with 0.122 M KSCN and required 24.91 mL to reach the endpoint in a Volhard titration.

Calculate the % w/w Cl^– (35.45 g/mol) in the sample. Provide your answer to 2 places after the decimal point and without units.

Reactions: Cl^– + Ag⁺ → AgCl(s) Reaction 1

Ag⁺ + SCN^– → AgSCN(s) Reaction 2

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