1. Calculate the moles of each gas:
* Nitric oxide (NO):
- Molar mass of NO = 14.01 g/mol (N) + 16.00 g/mol (O) = 30.01 g/mol
- Moles of NO = 26.3 g / 30.01 g/mol = 0.876 mol
* Oxygen (O2):
- Molar mass of O2 = 2 * 16.00 g/mol = 32.00 g/mol
- Moles of O2 = 36.2 g / 32.00 g/mol = 1.131 mol
2. Calculate the total moles of gas:
- Total moles = 0.876 mol (NO) + 1.131 mol (O2) = 2.007 mol
3. Calculate the mole fraction of nitric oxide:
- Mole fraction of NO = (Moles of NO) / (Total moles)
- Mole fraction of NO = 0.876 mol / 2.007 mol = 0.437
Therefore, the mole fraction of nitric oxide in the gas mixture is 0.437.
