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11. A substance whose formula is A20 (A is a mystery element) is 60.0% A and 40.0% O. Identify the element A. Carbon

11. A substance whose formula is A20 (A is a mystery element) is 60.0% A and 40.0% O. Identify the element A. Carbon

Chemistry
Chemistry
10th Edition
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
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Please explain 11 and 12 to me the last Tutor didn't explain well

**Question 11:** A substance whose formula is A₂O (A is a mystery element) is composed of 60.0% A and 40.0% O. Identify the element A. *Answer:* The element A is identified as Carbon. --- **Question 12:** Traumatic acid contains 63.13% carbon, 8.830% hydrogen, and 28.03% oxygen. Its molar mass is 228 g/mol. Determine the empirical and molecular formulas of traumatic acid. *Answer:* - Empirical formula: C₅H₈O₂ - Molecular formula: C₁₂H₁₆O₄
Transcribed Image Text:**Question 11:** A substance whose formula is A₂O (A is a mystery element) is composed of 60.0% A and 40.0% O. Identify the element A. *Answer:* The element A is identified as Carbon. --- **Question 12:** Traumatic acid contains 63.13% carbon, 8.830% hydrogen, and 28.03% oxygen. Its molar mass is 228 g/mol. Determine the empirical and molecular formulas of traumatic acid. *Answer:* - Empirical formula: C₅H₈O₂ - Molecular formula: C₁₂H₁₆O₄
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