A Sample of Water That Is 99

question 44

Multiple Choice

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?

• A)1000 (one thousand: 1 × 10³)
• B)1,000,000 (one million: 1 × 10⁶)
• C)1,000,000,000 (one billion: 1 × 10⁹)
• D)1,000,000,000,000,000,000 (one million trillion: 1 × 10¹⁸)

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Definitions:

Systematic Numbering System

An organized method of assigning numbers to items in a way that encodes information about the items.

Mission

A statement or vision that defines the core purpose and objectives of an organization, guiding its decision-making and strategic direction.

Organization

An organized group of people with a particular purpose, such as a business, government body, or charity.

Simple Payback

A financial metric that calculates the time required for an investment to generate cash flows or savings sufficient to recover its initial cost.