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Chemistry / Chemistry 12 / Chapter 5 / Problem 5.132

Chemistry | 12th Edition | ISBN: 9780078021510 | Authors: Raymond Chang; Kenneth Goldsby

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Answer: Interstellar space contains mostly hydrogen atoms

Chapter 5, Problem 5.132

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QUESTION:

Interstellar space contains mostly hydrogen atoms at a concentration of about 1 atom/cm3 . (a) Calculate the pressure of the H atoms. (b) Calculate the volume (in liters) that contains 1.0 g of H atoms. The temperature is 3 K.

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QUESTION:

Interstellar space contains mostly hydrogen atoms at a concentration of about 1 atom/cm3 . (a) Calculate the pressure of the H atoms. (b) Calculate the volume (in liters) that contains 1.0 g of H atoms. The temperature is 3 K.

ANSWER:

Step 1 of 3

(a)

According to ideal gas law, the number of moles can be calculated by following formula.

........................(1)

Rearrange the formula(1)

.......................(2)

Here,

P = pressure

V = Volume

n = Number of moles

R = Gas constant

T = Temperature.

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