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Ch.1 - Chemical Tools: Experimentation & Measurement
Chapter 1, Problem 99a

The height of a horse is usually measured in hands instead of in feet, where 1 hand equals 1/3 ft (exactly). (a) How tall in centimeters is a horse of 18.6 hands?

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Unit Conversion

Unit conversion is the process of converting a measurement from one unit to another. In this question, we need to convert the height of a horse measured in hands to centimeters. Understanding how to convert between different units of measurement is essential for solving problems in chemistry and other sciences.
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Measurement of Height

Height is a linear measurement that can be expressed in various units, such as feet, inches, or centimeters. In this context, the height of a horse is given in hands, which is a traditional unit in equestrian contexts. Knowing how to interpret and convert these measurements is crucial for accurate calculations.
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Metric System

The metric system is a decimal-based system of measurement used globally, where units such as meters and centimeters are standard. Converting hands to centimeters requires an understanding of the metric system, as it provides a consistent framework for measurement that is widely accepted in scientific contexts.
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Related Practice
Textbook Question
The world record for the women's outdoor 20,000-meter run, set in 2000 by Tegla Loroupe, is 1:05:26.6 (seconds are given to the nearest tenth). What was her average speed, expressed in miles per hour with the correct number of significant figures? (Assume that the race distance is accurate to 5 significant figures)
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Textbook Question
In the United States, the emissions limit for carbon monoxide in motorcycle engine exhaust is 12.0 g of carbon monoxide per kilometer driven. What is this limit expressed in mg per mile with the correct number of significant figures?
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Textbook Question
The volume of water used for crop irrigation is measured in acre-feet, where 1 acre-foot is the amount of water needed to cover 1 acre of land to a depth of 1 ft. (a) If there are 640 acres per square mile, how many cubic feet of water are in 1 acre-foot? (b) How many acre-feet are in Lake Erie (total volume = 116 mi^3)?
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Textbook Question

The height of a horse is usually measured in hands instead of in feet, where 1 hand equals 1/3 ft (exactly). (b) What is the volume in cubic meters of a box measuring 6 ⨉ 2.5 ⨉ 15 hands

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Textbook Question
Weights in England are commonly measured in stones, where 1 stone = 14 lb. What is the weight in pounds of a person who weighs 8.65 stones?
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Textbook Question

Concentrations of substances dissolved in solution are often expressed as mass per unit volume. For example, normal human blood has a cholesterol concentration of about 200 mg/100 mL. Express this concentration in the following units. (a) mg/L

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