A sample of water that is 99.9999 percent pure contains 0.0001 percent impurities. Consider from Chapter 1 that a glass of water contains on the order of a trillion trillion (1 × 10²⁴)molecules. If 0.0001 percent of these molecules were the molecules of some impurity, about how many impurity molecules would this be?

Question

Quizplus · Accepted Answer

0.0001 percent of 1 × 10²⁴ molecules is 1 × 10²⁴ × 0.0001 = 1 × 10¹⁸ molecules.

A Sample of Water That Is 99