Final answer:
To determine the moles of PF₆ that can be made from 0.740 moles of F₂, use the balanced chemical equation and mole ratios. The answer is 1.233 moles PF₆.
Step-by-step explanation:
To determine the moles of PF₆ that can be made from 0.740 moles of F₂, we need to use the balanced chemical equation for the reaction. If we consider the reaction:
3F₂ + PCl₅ → 5PF₃ + 5Cl₂
We can see that the mole ratio between F₂ and PF₆ is 3:5. Therefore, we can set up the following proportion:
(0.740 moles F₂) / (3 moles F₂) = (x moles PF₆) / (5 moles PF₆)
Solving for x, we find:
x = (0.740 moles F₂ × 5 moles PF₆) / 3 moles F₂ = 1.233 moles PF₆