Answer:- **0.456 L**

Solution:- Looking at the given information, only volume and pressure are changing and the temperature is constant. **We know that, at constant temperature, the volume of the gas is inversely proportional to the pressure.**

= 735 torr

= 807 torr

= 500. mL

= ?

Let's plug in the values in the equation and solve it for final volume.

since, 1 L = 1000 mL

= 0.456 L

**So, the volume of carbon dioxide at the new pressure will be 456 mL or 0.456 L.**

I believe it’s 2 moles or iron

**Explanation:**

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