A 8.75-liter balloon holds 0.450 moles of gas at 785 torr. If 0.250 moles of gas are added, the pressure is observed to be 812 torr. What is the new volume of the balloon, assuming constant temperature?

Aplanet similar to earth has four moons roughly the same distance away. the moon that will most affect tides on the planet is the one that has the greatest a) mass. b) volume. c) density. d) amount of water.