Ch.10 - Gases

Brown - Chemistry: The Central Science 14th Edition

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Brown 14th Edition

Ch.10 - Gases

Problem 19c

Chapter 10, Problem 19c

The highest barometric pressure ever recorded was 823.7 torr at Agata in Siberia, Russia on December 31, 1968. Convert this pressure to (c) pascals.

Verified step by step guidance

Identify the conversion factor from torr to pascals. The conversion factor is 1 torr = 133.322 pascals.

Write down the given pressure in torr, which is 823.7 torr.

Set up the conversion equation using the conversion factor. Multiply the given pressure by the conversion factor to convert the pressure from torr to pascals.

Perform the multiplication to find the pressure in pascals.

Express the final answer in pascals with appropriate significant figures based on the given data.

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Key Concepts

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

Barometric Pressure

Barometric pressure is the pressure exerted by the weight of the atmosphere at a given point. It is commonly measured in units such as torr, millimeters of mercury (mmHg), and pascals (Pa). Understanding barometric pressure is essential for meteorology and various scientific applications, as it influences weather patterns and altitude measurements.

Unit Conversion

Unit conversion is the process of converting a quantity expressed in one set of units to another. In this case, converting torr to pascals requires knowing the relationship between these units: 1 torr is equivalent to approximately 133.322 pascals. Mastery of unit conversion is crucial in chemistry and physics to ensure accurate calculations and comparisons.

Pressure Units

Pressure is a measure of force applied per unit area and can be expressed in various units, including pascals (Pa), atmospheres (atm), and torr. Each unit serves specific contexts; for example, pascals are the SI unit of pressure, while torr is often used in meteorology and vacuum measurements. Familiarity with these units is vital for interpreting and communicating scientific data.

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Related Practice

Textbook Question

(a) The compound 1-iodododecane is a nonvolatile liquid with a density of 1.20 g>mL. The density of mercury is 13.6 g>mL. What do you predict for the height of a barometer column based on 1-iodododecane, when the atmospheric pressure is 749 torr?

(b) What pressure, in atmospheres, is exerted on the body of a diver if she is 10 m below the surface of the water when the atmospheric pressure is 100 kPa? Assume that the density of the water is 1.00 5 1.00 3 103 kg/m3. The gravitational constant is 9.81 m/s2, and 1 Pa 5 1 kg/ms2

1815

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Textbook Question

Perform the following conversions: (d) 1.323 * 105 Pa to atmospheres

615

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Textbook Question

The highest barometric pressure ever recorded was 823.7 torr at Agata in Siberia, Russia on December 31, 1968. Convert this pressure to (e) psi.

476

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Textbook Question

The highest barometric pressure ever recorded was 823.7 torr at Agata in Siberia, Russia on December 31, 1968. Convert this pressure to (d) bars.

822

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Textbook Question

The highest barometric pressure ever recorded was 823.7 torr at Agata in Siberia, Russia on December 31, 1968. Convert this pressure to (b) mm Hg