The pressure inside a gas cylinder is 3 comma 506 mm Hg How many atmospheres of pressure is the gas exerting on the cylinder?

Use the conversion 1 atm = 760 mm Hg. Divide 3,506 mm Hg by 760 mm Hg per atmosphere: 3,506 ÷ 760 ≈ 4.613 atm, so the gas pressure is about 4.613 atm. This matches choice C, 4.613 atm.

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