Aspirin has the molecular formula C3HO4. 1. What is the % C in aspirin by mass in aspirin? 2. What is the % O in aspirin by mass in aspirin? 3. An oxide of chromium is made up of 5.20 g chromium and 5.60 g oxygen. What is the empirical formula of the oxide? 4. An oxide of nitrogen contains 63.1% oxygen and has a molar mass of the compound is 76.0 g/mol. What is the empirical formula for this compound? What is the molecular formula for this compound? Please use the following set of molar masses for uniformity of answers:

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Chapter1: Chemical Foundations
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Aspirin has the molecular formula C3HO4.
1. What is the % C in aspirin by mass in aspirin?
2. What is the % O in aspirin by mass in aspirin?
3. An oxide of chromium is made up of 5.20 g chromium and 5.60 g oxygen. What is the
empirical formula of the oxide?
4. An oxide of nitrogen contains 63.1% oxygen and has a molar mass of the compound is 76.0
g/mol. What is the empirical formula for this compound? What is the molecular formula for this
compound?
Please use the following set of molar masses for uniformity of answers:
Transcribed Image Text:Aspirin has the molecular formula C3HO4. 1. What is the % C in aspirin by mass in aspirin? 2. What is the % O in aspirin by mass in aspirin? 3. An oxide of chromium is made up of 5.20 g chromium and 5.60 g oxygen. What is the empirical formula of the oxide? 4. An oxide of nitrogen contains 63.1% oxygen and has a molar mass of the compound is 76.0 g/mol. What is the empirical formula for this compound? What is the molecular formula for this compound? Please use the following set of molar masses for uniformity of answers:
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