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Introductory Chemistry

Steven S. Zumdahl, Donald J. DeCoste

Chapter 8

Chemical Composition


Problem 1

Merchants usually sell small nuts, washers, and bolts by weight (like jelly beans!) rather than by individually counting the items. Suppose a particular type of washer weighs 0.110 $\mathrm{g}$ on the average. What would 100 such washers weigh? How many washers would there be in $100 .$ g of washers?

Lizabeth T.
Numerade Educator

Problem 2

The Chemistry in Focus segment Plastic That Talks and Listens! discusses polyvinylidene difluoride (PVDF). What is the empirical formula of PVDF? Note: An empirical formula is the simplest whole-number ratio of atoms in a compound. This is discussed more fully in Sections 8.7 and 8.8 of your text.

Lizabeth T.
Numerade Educator