Treatment of a 0.7000 g sample of impure potassium chloride with an excess of AGNO3 resulted in the formation of 0.8871 g of AgCI (143.35 g/mol). Calculate the percentage of KCI (74.55 g/mol) in the sample. (А) 65.91% KCI (в) 21.97% КCI 43.94% KCI (D 87.87% KCI

Treatment of a 0.7000 g sample of impure potassium chloride with an excess of AGNO3 resulted in the formation of 0.8871 g of AgCI (143.35 g/mol). Calculate the percentage of KCI (74.55 g/mol) in the sample. (А) 65.91% KCI (в) 21.97% КCI 43.94% KCI (D 87.87% KCI

Chemistry & Chemical Reactivity

10th Edition

ISBN:9781337399074

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter3: Chemical Reactions

Section3.9: Classifying Reactions In Aqueous Solution

Problem 1.2ACP

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Concept explainers

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".

Question

Treatment of a 0.7000 g sample of impure potassium chloride with an excess of AGNO3 resulted in the formation of
0.8871 g of AgCI (143.35 g/mol). Calculate the percentage of KCI (74.55 g/mol) in the sample.
(А) 65.91% KCI
(в) 21.97% КCI
43.94% KCI
(D
87.87% KCI

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