Answered: An Oxygen gas container has a volume of…

An Oxygen gas container has a volume of 20.0 L. How many grams of oxygen are there in the container ,if the gas has a pressure of 845 mm Hg at 22.0oC ?

Introduction to General, Organic and Biochemistry

11th Edition

ISBN:9781285869759

Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres

Publisher:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres

Chapter5: Gases, Liquids, And Solids

Section: Chapter Questions

Problem 5.46P: 5-46 Calculate the molar mass of a gas if 3.30 g of the gas occupies 660. mL. at 735 mm Hg and 27°C.

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Question

QUESTION 2

An Oxygen gas container has a volume of 20.0 L. How many grams of oxygen are there in the container ,if the gas has a pressure of 845 mm Hg at 22.0^oC ?

Expert Solution

Step 1

By help of Ideal gas equation (PV = nRT) we can calculate the value of Number of moles of gas as well as mass of gas in grams , therefore Ideal gas equation can be converted as -

PV = nRT

PV = wRT/ M

Here , P is pressure of gas atmosphere

V is volume of the gas in Liter

w is mass / weight of the gas in grams

R is universal gas constant (0.082 L atm mol^-1 K^-1)

T is temperature of gas in Kelvin

M = molar mass of the gas in g/mol

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