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Solved: The mass of an evacuated 255-mL flask is 143.187 g. The mass of the flask filled

Introductory Chemistry | 5th Edition | ISBN: 9780321910295 | Authors: Nivaldo J Tro ISBN: 9780321910295 34

Solution for problem 101P Chapter 11

Introductory Chemistry | 5th Edition

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Introductory Chemistry | 5th Edition | ISBN: 9780321910295 | Authors: Nivaldo J Tro

Introductory Chemistry | 5th Edition

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Problem 101P

PROBLEM 101P

The mass of an evacuated 255-mL flask is 143.187 g. The mass of the flask filled with 267 torr of an unknown gas at 25 °C is 143.289 g. Calculate the molar mass of the unknown gas.

Step-by-Step Solution:

Solution 101P

Here, we are going to calculate the molar mass of the unknown gas.

Step 1:

From ideal gas equation

= ----(1)

Since = ----(2)

Thus,

 Rearrange the equation (1) by using equation(2)

Or  M =----(3)

Step 2 of 3

Chapter 11, Problem 101P is Solved
Step 3 of 3

Textbook: Introductory Chemistry
Edition: 5
Author: Nivaldo J Tro
ISBN: 9780321910295

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Solved: The mass of an evacuated 255-mL flask is 143.187 g. The mass of the flask filled