Asample of helium has a volume of 3 liters when the pressure is 500 torr. what volume does the gas occupy at 300 torr?

The volume of the gas is 5 liters. See the explanation below , please.

Explanation:

We use the Boyle-Mariotte´s Law (we consider that the temperature is constant according to the given statement):

P initial x V initial = P final x V final

500 torr x 3 liters = 300 torr x V final

V final= (500 torr x 3 liters)/300 torr = 5 liters

one centimetre is equal to 0.01 metres

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