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Question 8.2: The oxygen in a tank in the hospital respiratory unit has a ...

The oxygen in a tank in the hospital respiratory unit has a pressure of 4820 mmHg.

Calculate the pressure, in atmospheres, of the oxygen gas.

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The equality 1 atm = 760 mmHg can be written as two conversion factors:

\frac{760  mmHg}{1  atm}        and         \frac{1  atm}{760  mmHg}

Using the conversion factor that cancels mmHg and gives atm, we can set up the problem as

4820  \cancel{mmHg}  \times  \frac{1  atm}{760  \cancel{mmHg}} = 6.34  atm

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