Commercial brass, an alloy of Zn and Cu, reacts with hydrochloric acid os follows:Zn ( s ) + 2 HCl ( a q ) → ZnCl 2 ( a q ) + H 2 ( g )(Cu does not react with HCl.) When 0.565 g of a certain brass alloy is reacted with excess HCl, 0.0985 g ZnCl2 is eventually isolated.a. What .is the composition of the brass by mass?b. How could this result be checked without changing the above procedure?
Commercial brass, an alloy of Zn and Cu, reacts with hydrochloric acid os follows:Zn ( s ) + 2 HCl ( a q ) → ZnCl 2 ( a q ) + H 2 ( g )(Cu does not react with HCl.) When 0.565 g of a certain brass alloy is reacted with excess HCl, 0.0985 g ZnCl2 is eventually isolated.a. What .is the composition of the brass by mass?b. How could this result be checked without changing the above procedure?
Chemistry & Chemical Reactivity
9th Edition
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter4: Stoichiometry: Quantitative Information About Chemical Reactions
Section: Chapter Questions
Problem 4PS: The balanced equation for the reduction of iron ore to the metal using CO is Fe2O3(s) + 3 CO(g) 2...
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Commercial brass, an alloy of Zn and Cu, reacts with hydrochloric acid os follows:
Zn ( s ) + 2 HCl ( a q ) → ZnCl 2 ( a q ) + H 2 ( g )
(Cu does not react with HCl.) When 0.565 g of a certain brass alloy is reacted with excess HCl, 0.0985 g ZnCl2 is eventually isolated.
a. What .is the composition of the brass by mass?
b. How could this result be checked without changing the above procedure?
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