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A gas of unknown identity diffuses at a rate of 83.3 mL/s in a diffusion apparatus in which carbon dioxide diffuses at the rate of 102 mL/s. Calculate the molecular mass of the unknown gas.

65.92 $\mathrm{gmol}^{-1}$

01:03

Aadit S.

Chemistry 101

Chapter 9

Gases

Rice University

Drexel University

University of Maryland - University College

Lectures

02:29

Chemistry is the science o…

04:42

In chemistry and physics, …

00:55

In a given diffusion appar…

02:43

02:48

Carbon dioxide, $\mathrm{C…

02:11

The rate of effusion of a …

03:05

The effusion rate of an un…

02:12

The rate of effusion of an…

02:53

An unknown gas evolved fro…

01:51

An unknown gas is found to…

02:03

A gas of unknown molecular…

03:10

A sample of an unknown gas…

01:17

The mass of an evacuated 2…

02:42

An unknown gas effuses at …

02:41

An unknown diatomic gas ha…

03:12

A sample of a gas has a ma…

02:07

08:24

A 1.007 -g sample of an un…

03:54

02:33

What is the molecular mass…

01:35

Calculate the molar mass o…

01:46

We're looking at diffusion to distract some contacts. The rate of diffusion of a is proportional 21 over route. Um, of a rate of diffusion of a divided by the rate of diffusion off molecule B is equal to root, be divided by M. A. So we'll put this into a real life example now. So we have the radio diffusion of an unknown gas divided by great of diffusion off CO two equal to the root off am CO two divided by m. But now So what we have is 83.3 mL per second, divided by one or 2 mL per second. That's equal to root 44 g for more. Guided by unknown we've rearranged to solve for are unknown, so rude unknown is equal to describe it are 44 grams from all divided by 9.817 So, um no is 65.92 g per mole. Yeah,

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