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April 18, 2014

April 18, 2014

Posted by **pasely** on Monday, September 14, 2009 at 11:59pm.

a.How many moles of gas are in his lungs?

b.If the diver swims to the surface without exhaling where the temperature is 32C and the pressure changes to 100.2 kPa, what will the volume of the air in his lungs be?

- Chemistry II -
**DrBob222**, Tuesday, September 15, 2009 at 12:11amFor a. Use PV = nRT. You know P and V, R and T. Solve for n.

For b, using n from part a, then use the new P and T to solve for V.

By the way, you can use kPa directly, if you wish, without changing to atmospheres IF you use 8.3145 for R.

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