a. What is the formula weight of sodium oxide? b. How many oxide ions are present in 0.25 mol sodium oxide? c. How many sodium ions are present in 0.25 mol of sodium oxide? d. How many oxide ions are present in 2.30 g of sodium oxide? e. How many sodium ions are present in 2.30 g of sodium oxide? 11. (3.79) Isovaleric acid (CsH10O2) is the molecule responsible for foot odor. To smell this compound, it must be present in the air at a minimum of 250 parts per billion. This means that a 0.50 L volume of air would hold 0.00013 g of isovaleric acid. a. To how many moles of isovaleric acid does this correspond? b. To how many molecules of isovaleric acid does this correspond?

a. What is the formula weight of sodium oxide? b. How many oxide ions are present in 0.25 mol sodium oxide? c. How many sodium ions are present in 0.25 mol of sodium oxide? d. How many oxide ions are present in 2.30 g of sodium oxide? e. How many sodium ions are present in 2.30 g of sodium oxide? 11. (3.79) Isovaleric acid (CsH10O2) is the molecule responsible for foot odor. To smell this compound, it must be present in the air at a minimum of 250 parts per billion. This means that a 0.50 L volume of air would hold 0.00013 g of isovaleric acid. a. To how many moles of isovaleric acid does this correspond? b. To how many molecules of isovaleric acid does this correspond?

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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