# Problem: Part A:A chemist attempted to synthesize a particular compound that showed promise as a new antibiotic. If she succeeded in making and purifying the compound, then it contains only carbon, hydrogen, bromine, and oxygen. She sent a sample off for analysis, and days later the following results arrived:carbon, 34.35%; hydrogen, 1.725%; bromine, 45.65%; oxygen, 18.27% Determine the empirical formula.  Part B:Because the scientist knows the compound she is trying to make, she can calculate the molar mass, assuming she synthesized the right compound. The expected molar mass is 699.9 g/mol. What is the molecular formula of the compound?

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Part A:

A chemist attempted to synthesize a particular compound that showed promise as a new antibiotic. If she succeeded in making and purifying the compound, then it contains only carbon, hydrogen, bromine, and oxygen. She sent a sample off for analysis, and days later the following results arrived:

carbon, 34.35%; hydrogen, 1.725%; bromine, 45.65%; oxygen, 18.27%

Determine the empirical formula.

Part B:

Because the scientist knows the compound she is trying to make, she can calculate the molar mass, assuming she synthesized the right compound. The expected molar mass is 699.9 g/mol.

What is the molecular formula of the compound?

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Molecular Formula concept. You can view video lessons to learn Molecular Formula. Or if you need more Molecular Formula practice, you can also practice Molecular Formula practice problems.

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Based on our data, we think this problem is relevant for Professor Goldsby's class at FSU.