A sample of O3 gas is observed to effuse through a porous barrier in 4.08 minutes. Under the same conditions, the same number of moles of an unknown gas requires 3.89 minutes to effuse through the same barrier. The molar mass of the unknown gas is g/mol.

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#### Effusion of Gases

A sample of \( O_3 \) gas is observed to effuse through a porous barrier in 4.08 minutes. Under the same conditions, the same number of moles of an unknown gas requires 3.89 minutes to effuse through the same barrier.

The molar mass of the unknown gas is _____ g/mol.
Transcribed Image Text:#### Effusion of Gases A sample of \( O_3 \) gas is observed to effuse through a porous barrier in 4.08 minutes. Under the same conditions, the same number of moles of an unknown gas requires 3.89 minutes to effuse through the same barrier. The molar mass of the unknown gas is _____ g/mol.
### Problem Statement: Effusion Rates of Gases

#### Given Data:
The rate of effusion of \( \text{NO}_2 \) gas through a porous barrier is observed to be:
\[ 3.05 \times 10^{-4} \, \text{mol/h} \]

#### Objective:
Determine the rate of effusion of \( \text{CO}_2 \) gas under the same conditions.

#### To Calculate: 
The rate of effusion of \( \text{CO}_2 \) gas in \( \text{mol/h} \).

### Explanation:
Effusion refers to the process by which gas particles pass through a tiny hole. According to Graham's law of effusion, the rate of effusion (\( r \)) of a gas is inversely proportional to the square root of its molar mass (\( M \)):
\[ \frac{r_1}{r_2} = \sqrt{\frac{M_2}{M_1}} \]

Where:
- \( r_1 \) and \( r_2 \) are the rates of effusion of gases 1 and 2.
- \( M_1 \) and \( M_2 \) are the molar masses of gases 1 and 2.

**Note**: There is a blank box in the image to be filled with the calculated value for the rate of effusion of \( \text{CO}_2 \) gas.

### Steps to Solve:
1. Identify the molar masses of \( \text{NO}_2 \) and \( \text{CO}_2 \) gases.
2. Using Graham's law, solve for the rate of effusion of \( \text{CO}_2 \).

This will provide students with a practical application of Graham's Law in determining the unknown rate of effusion for \( \text{CO}_2 \) based on known data.
Transcribed Image Text:### Problem Statement: Effusion Rates of Gases #### Given Data: The rate of effusion of \( \text{NO}_2 \) gas through a porous barrier is observed to be: \[ 3.05 \times 10^{-4} \, \text{mol/h} \] #### Objective: Determine the rate of effusion of \( \text{CO}_2 \) gas under the same conditions. #### To Calculate: The rate of effusion of \( \text{CO}_2 \) gas in \( \text{mol/h} \). ### Explanation: Effusion refers to the process by which gas particles pass through a tiny hole. According to Graham's law of effusion, the rate of effusion (\( r \)) of a gas is inversely proportional to the square root of its molar mass (\( M \)): \[ \frac{r_1}{r_2} = \sqrt{\frac{M_2}{M_1}} \] Where: - \( r_1 \) and \( r_2 \) are the rates of effusion of gases 1 and 2. - \( M_1 \) and \( M_2 \) are the molar masses of gases 1 and 2. **Note**: There is a blank box in the image to be filled with the calculated value for the rate of effusion of \( \text{CO}_2 \) gas. ### Steps to Solve: 1. Identify the molar masses of \( \text{NO}_2 \) and \( \text{CO}_2 \) gases. 2. Using Graham's law, solve for the rate of effusion of \( \text{CO}_2 \). This will provide students with a practical application of Graham's Law in determining the unknown rate of effusion for \( \text{CO}_2 \) based on known data.
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