Final answer:
The final volume of the unknown gas, when the pressure is decreased from 1.09 atm to 0.6 atm at constant temperature, is 11.35 mL.
Step-by-step explanation:
The final volume of the unknown gas can be calculated using Boyle's Law, which states that the pressure and volume of a gas are inversely proportional at constant temperature. We can use the equation:
P1 * V1 = P2 * V2
where P1 and V1 are the initial pressure and volume, and P2 and V2 are the final pressure and volume.
Using the given information, P1 = 1.09 atm, V1 = 6.25 mL, and P2 = 0.6 atm.
Plugging these values into the equation, we get:
(1.09 atm) * (6.25 mL) = (0.6 atm) * (V2)
Solving for V2:
V2 = (1.09 atm * 6.25 mL) / (0.6 atm) = 11.35 mL
Rounding to the nearest hundredth, the final volume of the unknown gas would be 11.35 mL.