Answer:
Pressure of sulfur dioxide is 360mmHg
Step-by-step explanation:
The total pressure of a gas mixture is defined as the sum of the pressure of each gas in the mixture.
In the mixture of the problem, there are CO, CO₂ and SO₂ as gases. Total pressure is 1465mmHg, pressure of CO is 234mmHg and pressure of CO₂ is 871mmHg, it is possible to wirte:
![1465mmHg = 234mmHg + 871mmHg + P_{SO_(2)}](https://img.qammunity.org/2021/formulas/chemistry/high-school/oioqmemk14j1hrnm2nonc8amltcitsepom.png)
![P_{SO_(2)} = 360mmHg](https://img.qammunity.org/2021/formulas/chemistry/high-school/xm6ymunnotkwxq8d18ki5fk2aihmlsrrc7.png)
Thus, pressure of sulfur dioxide is 360mmHg.