The pressure inside a gas cylinder is 3,506 mmHg. How many atmospheres of pressure is the gas exerting on the cylinder?

Use the conversion 1 atm = 760 mmHg. Divide the pressure by 760: 3,506 mmHg ÷ 760 mmHg/atm ≈ 4.613 atm. Therefore, the gas exerts about 4.613 atmospheres of pressure, choice B.

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