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A vessel contains CO, H2, and O2. The mole fractions of H2 and O2 are 0.17 and 0.62, respectively. What would be the mole fraction of CO?

A vessel contains CO, H₂, and O₂. The mole fractions of H₂ and O₂ are 0.17 and 0.62, respectively. What would be the mole fraction of CO?