Answered: 1. 0.5/2.8=b/20

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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1. 0.5/2.8=b/20

2. The dosage of a cold medication is 2 mg for every 80 lb of body weight. How many milligrams of this medication are required for a person who weighs 260 lb?

3. If your car can travel 70.5 mi on 3 gal of gasoline, how many miles can the car travel on 28 gal of gasoline under similar driving conditions?

Leonardo da Vinci measured various distances on the human body in order to make accurate drawings. He determined that generally the ratio of the kneeling height of a person to the standing height of that person was 3:4. Using this ratio, determine the standing height of a person (in inches) who has a kneeling height of 57 in.

On a map, a distance of 2 cm represents 15 km. What is the distance (in km) between two cities that are 9 cm apart on the map? (See Example 2 in this section.)

The profits of a firm are shared by its two partners in the ratio 7:5. If the partner receiving the larger amount of this year's profits receives $98,000, what amount does the other partner receive? (See Example 3 in this section.)

A certain allergen affects approximately 3 people per 10,000 in the United States. Assuming the U.S. population is approximately 326 million people, how many people suffer from this allergen? (See Example 4 in this section.)

Two people have the same yearly income, but one gets paid every other week, whereas the other gets paid twice a month. Which paycheck is larger?

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