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Chapter 8: Q. 8.62 (page 259)

Using the answer from problem8.61, how many grams of nitrogen are in Whitney's lungs at STP if the air contains 78%nitrogen?

Short Answer

Expert verified

Whitney's lungs are in2.75gofN2.

Step by step solution

01

Given Information

We need to find how many grams of nitrogen are in Whitney's lungs.

02

Simplify

Now,

2.8Lis 100%of air and it is equal to the lung capacity.

so,

2.8L100%

calculate 78%of 2.8L:

78%脳2.8L100%=2.2L

The volume of the pure nitrogen in the air mixture of gases is 2.2L.

Conversion factor:

1molofN222.4LofN2

calculating mole:

1molofN222.4LofN2脳2.2LofN2=0.098molofN2

We can present this with the conversion factor below:

1molofN222.4LofN2

Calculating how many grams of nitrogen :

1molofN222.4LofN2脳0.098molofN2=2.75gofN2

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