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Caffeine (MM = 194.2 g/mol) is a small molecule that many people ingest for its stimulant effects. Elemental analysis shows that this compound contains 49.5% C, 5.19% H, 28.9% N and 16.5% O by mass. (a) Determine the empirical formula of Caffeine? (b) Determine the molecular formula of Caffeine? Clearly show your work.

Caffeine (MM = 194.2 g/mol) is a small molecule that many people ingest for its stimulant effects. Elemental analysis shows that this compound contains 49.5% C, 5.19% H, 28.9% N and 16.5% O by mass. (a) Determine the empirical formula of Caffeine? (b) Determine the molecular formula of Caffeine? Clearly show your work.

Chemistry for Engineering Students
Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter3: Molecules, Moles, And Chemical Equations
Section: Chapter Questions
Problem 3.111PAE: 3.111 The chlorophyll molecule responsible for photosynthesis in plants contains 2.72% Mg by mass....
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Caffeine (MM = 194.2 g/mol) is a small molecule that many people ingest for its stimulant effects. Elemental %3D analysis shows that this compound contains 49.5% C, 5.19% H, 28.9% N and 16.5% O by mass. (a) Determine the empirical formula of Caffeine? (b) Determine the molecular formula of Caffeine? Clearly show your work.
Transcribed Image Text:Caffeine (MM = 194.2 g/mol) is a small molecule that many people ingest for its stimulant effects. Elemental %3D analysis shows that this compound contains 49.5% C, 5.19% H, 28.9% N and 16.5% O by mass. (a) Determine the empirical formula of Caffeine? (b) Determine the molecular formula of Caffeine? Clearly show your work.
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