Introduction to Spectroscopy
5th Edition
ISBN: 9781285460123
Author: Donald L. Pavia, Gary M. Lampman, George S. Kriz, James A. Vyvyan
Publisher: Cengage Learning
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Manufacturers of headache remedies routinely claim that their own brands are more potent pain relievers than the competing brands. Their way of making the comparison is to compare the number of molecules in the standard dosage. Tylenol uses 325 mg of acetaminophen (C8H9NO2) as the standard dose, whereas Advil uses 2.00 × 102 mg of ibuprofen (C13H18O2). Find the number of molecules of pain reliever in the standard doses of (a) Tylenol and (b) Advil.
The common Eastern mole, a mammal, typically has a mass of 75 g, which corresponds to about 7.5 moles of atoms. (A mole of atoms is 6.02 * 1023 atoms.) In atomic mass units (u), what is the average mass of the atoms in the common Eastern mole?
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I am having an issue with figuring the following: For pH 9.5 I am getting 3.16 x 10 ^-10. Is this correct? Thank you
Solution X has a pH of 9.5, and solution Y has a pH of 7.6.?
What is [H3O+] in Solution X?
What is [H3O+] in Solution Y?
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