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Question: A deep sea diver should breath a gas mixture that has the same oxygen partial pressure as at sea level, where dry air contains 20.9% oxygen and has a total pressure of 1.01 x 105 N/m2.

Part I: What is the partial pressure of oxygen at sea level?

N/m²

Part II: If the diver breathes a gas mixture at a pressure of 2.50 x 106 N/m2, what percent oxygen should it be to have the same oxygen partial pressure as at sea level?

Explain each and every step in detail.

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