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3. A compound has a percent composition of 40.0 % carbon, 6.71% hydrogen and the rest is oxygen.What is the empirical formula of the compound?

3. A compound has a percent composition of 40.0 % carbon, 6.71% hydrogen and the rest is oxygen.What is the empirical formula of the compound?

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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1. An organic compound was found to contain 54.5% C, 9.2% H, and 36.3% O. a. What is the empirical formula of the compound? b. If the molar mass of the compound is 88.1 g/mol, what is its molecular formula? 2. A compound contains 43.38 percent Na, 11.33 percent C, and 45.29 percent oxygen. What is the empirical formula of this compound. 3. A compound has a percent composition of 40.0 % carbon, 6.71% hydrogen and the rest is oxygen.What is the empirical formula of the compound? 4. The molecular weight of caffeine is 194 and the empirical formula is C4H5N2O. What is the molecular formula of caffeine?
Transcribed Image Text:1. An organic compound was found to contain 54.5% C, 9.2% H, and 36.3% O. a. What is the empirical formula of the compound? b. If the molar mass of the compound is 88.1 g/mol, what is its molecular formula? 2. A compound contains 43.38 percent Na, 11.33 percent C, and 45.29 percent oxygen. What is the empirical formula of this compound. 3. A compound has a percent composition of 40.0 % carbon, 6.71% hydrogen and the rest is oxygen.What is the empirical formula of the compound? 4. The molecular weight of caffeine is 194 and the empirical formula is C4H5N2O. What is the molecular formula of caffeine?
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