A student made a gas sensor using an anodized aluminum strip and a thymol blue solution. Upon exposure to an unknown vapor, the gas sensor turned blue. Using this information, the student deducted that the vapor must be from: HNO3 NH3 HCI NaCl

A student made a gas sensor using an anodized aluminum strip and a thymol blue solution. Upon exposure to an unknown vapor, the gas sensor turned blue. Using this information, the student deducted that the vapor must be from: HNO3 NH3 HCI NaCl

Chemistry for Engineering Students

3rd Edition

ISBN:9781285199023

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter1: Introduction To Chemistry

Section: Chapter Questions

Problem 1.77PAE

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Question

A student made a gas sensor using an anodized aluminum strip and a thymol blue
solution. Upon exposure to an unknown vapor, the gas sensor turned blue. Using this
information, the student deducted that the vapor must be from:
HNO3
NH3
HCI
NaCl

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