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# A 20.0-L tank contains 4.86 X 10-4 kg of helium at 18.0o ISBN: 9780321675460 31

## Solution for problem 1E Chapter 18

University Physics | 13th Edition

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Problem 1E

A 20.0-L tank contains 4.86 X 10-4 kg of helium at 18.0o C. The molar mass of helium is 4.00 g/mol. (a) How many moles of helium are in the tank? (b) What is the pressure in the tank, in pascals and in atmospheres?

Step-by-Step Solution:

Solution to 1E Step 1 3 Volume of tank =20L =0.02m Mass of helium = 4.86x10 Kg -4 Molar mass of helium = 4.0g/mol 0 Temperature =18 C=291K m =nM tot n=number of moles=m /M tot n=4.86x10 Kg/4x10 -3 n=0.1215mol

Step 2 of 2

##### ISBN: 9780321675460

This full solution covers the following key subjects: tank, helium, Molar, mass, mol. This expansive textbook survival guide covers 26 chapters, and 2929 solutions. This textbook survival guide was created for the textbook: University Physics, edition: 13. Since the solution to 1E from 18 chapter was answered, more than 818 students have viewed the full step-by-step answer. The full step-by-step solution to problem: 1E from chapter: 18 was answered by , our top Physics solution expert on 05/06/17, 06:07PM. The answer to “A 20.0-L tank contains 4.86 X 10-4 kg of helium at 18.0o C. The molar mass of helium is 4.00 g/mol. (a) How many moles of helium are in the tank? (b) What is the pressure in the tank, in pascals and in atmospheres?” is broken down into a number of easy to follow steps, and 44 words. University Physics was written by and is associated to the ISBN: 9780321675460.

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A 20.0-L tank contains 4.86 X 10-4 kg of helium at 18.0o

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