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QUESTION 28 For a 8.73 g sample of ethanol (shown in the figure), what is the percent composition by mass of carbon? The molar mass of ethanol is 46.08 g-mol-1. H. H. °C H. 18.99% O 22.29% O 26.196 O 52.1%

QUESTION 28 For a 8.73 g sample of ethanol (shown in the figure), what is the percent composition by mass of carbon? The molar mass of ethanol is 46.08 g-mol-1. H. H. °C H. 18.99% O 22.29% O 26.196 O 52.1%

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Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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67 QUESTION 28 For a 8.73 g sample of ethanol (shown in the figure), what is the percent composition by mass of carbon? The molar mass of ethanol is 46.08 g-mol-1. H. H. H H O 18.99% O 22.2% O 26.196 O 52.1% QUESTION 29 Aquamarine is a mineral called Beryl. What is the empirical formula of aquamarine if it contains 3.3% beryllium, 6.6% aluminum, 54.9% silicon and Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save All Answer
Transcribed Image Text:67 QUESTION 28 For a 8.73 g sample of ethanol (shown in the figure), what is the percent composition by mass of carbon? The molar mass of ethanol is 46.08 g-mol-1. H. H. H H O 18.99% O 22.2% O 26.196 O 52.1% QUESTION 29 Aquamarine is a mineral called Beryl. What is the empirical formula of aquamarine if it contains 3.3% beryllium, 6.6% aluminum, 54.9% silicon and Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save All Answer
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