Determine what the unknow gas is when it has a rate of diffusion which is 1.897 times faster than N,o, Will it be CHe, CO, NO, CO,, N,O, or C,H,

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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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**Determine the Unknown Gas**

To identify the unknown gas, given that it has a rate of diffusion which is 1.897 times faster than \( N_2O_5 \), we are considering one of the following gases: \( CH_4 \), \( CO \), \( NO \), \( CO_2 \), \( N_2O_4 \), or \( C_2H_6 \).

To solve this problem, you can use Graham's Law of Effusion, which states that the rate of effusion (or diffusion) of a gas is inversely proportional to the square root of its molar mass:

\[ \frac{\text{Rate}_{\text{Gas}_1}}{\text{Rate}_{\text{Gas}_2}} = \sqrt{\frac{M_{2}}{M_{1}}} \]

Where:
- \( \text{Rate}_{\text{Gas}_1} \) is the rate of diffusion of the unknown gas.
- \( \text{Rate}_{\text{Gas}_2} \) is the rate of diffusion of \( N_2O_5 \).
- \( M_{1} \) is the molar mass of the unknown gas.
- \( M_{2} \) is the molar mass of \( N_2O_5 \).

Given that the rate of the unknown gas is 1.897 times faster than \( N_2O_5 \), we can set up the equation:

\[ 1.897 = \sqrt{\frac{M_{N_2O_5}}{M_{\text{unknown}}}} \]

You can then square both sides to get:

\[ (1.897)^2 = \frac{M_{N_2O_5}}{M_{\text{unknown}}} \]

\[ 3.598 = \frac{M_{N_2O_5}}{M_{\text{unknown}}} \]

To rearrange for \( M_{\text{unknown}} \):

\[ M_{\text{unknown}} = \frac{M_{N_2O_5}}{3.598} \]

The molar mass of \( N_2O_5 \) is approximately 108 g/mol.

\[ M_{\text{unknown}} = \frac{108}{3.598} \approx 30.02 \text{ g/mol} \]

Now, comparing the
Transcribed Image Text:**Determine the Unknown Gas** To identify the unknown gas, given that it has a rate of diffusion which is 1.897 times faster than \( N_2O_5 \), we are considering one of the following gases: \( CH_4 \), \( CO \), \( NO \), \( CO_2 \), \( N_2O_4 \), or \( C_2H_6 \). To solve this problem, you can use Graham's Law of Effusion, which states that the rate of effusion (or diffusion) of a gas is inversely proportional to the square root of its molar mass: \[ \frac{\text{Rate}_{\text{Gas}_1}}{\text{Rate}_{\text{Gas}_2}} = \sqrt{\frac{M_{2}}{M_{1}}} \] Where: - \( \text{Rate}_{\text{Gas}_1} \) is the rate of diffusion of the unknown gas. - \( \text{Rate}_{\text{Gas}_2} \) is the rate of diffusion of \( N_2O_5 \). - \( M_{1} \) is the molar mass of the unknown gas. - \( M_{2} \) is the molar mass of \( N_2O_5 \). Given that the rate of the unknown gas is 1.897 times faster than \( N_2O_5 \), we can set up the equation: \[ 1.897 = \sqrt{\frac{M_{N_2O_5}}{M_{\text{unknown}}}} \] You can then square both sides to get: \[ (1.897)^2 = \frac{M_{N_2O_5}}{M_{\text{unknown}}} \] \[ 3.598 = \frac{M_{N_2O_5}}{M_{\text{unknown}}} \] To rearrange for \( M_{\text{unknown}} \): \[ M_{\text{unknown}} = \frac{M_{N_2O_5}}{3.598} \] The molar mass of \( N_2O_5 \) is approximately 108 g/mol. \[ M_{\text{unknown}} = \frac{108}{3.598} \approx 30.02 \text{ g/mol} \] Now, comparing the
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