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: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter4: Reactions In Aqueous Solution
Section: Chapter Questions
Problem 60QAP: Gold metal will dissolve only in aqua regia, a mixture of concentrated hydrochloric acid and...
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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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