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1. Ibuprofen, a common headache remedy, has an empirical formula of C7H...
Chemistry, 02.06.2020 22:58, jayycruz59
AND PLEASE SHOW WORK !
1. Ibuprofen, a common headache remedy, has an empirical formula of C7H9O and a molar mass of approximately 215 g/mol. Find the molecular formula.
2. Determine the empirical formula and molecular formula for a compound composed of 1.04g K, 0.700 g Cr, and 0.86g O. Its molar mass is 388 g/mol.
3. Serotonin is a compound that conducts nerve impulses in the brain. It contains 68.2% C, 6.86% H, 15.9% N, and 9.08% O. Its molar mass is 176 g/mol. What is its empirical formula and molecular formula.
Answers: 2
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How do you identify the anode on a power source such as a battery? how do you identify the cathode? how are terms anion and cation?
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Observation and experimentation have led many scientists to accept a theory about the origin of the universe. this theory is called the big bang theory. scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. what makes this a scientific theory? (2 points)
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