I did solve this but then I still get a wrong answer. please help CHM 101 201810

Question

I did solve this but then I still get a wrong answer. please help

CHM 101 20181010728 Sum 2017 B 60 wth feedback Cinical Appicaton Problern 8.69 with feedback Clinical ,aagna 312.314) Section 8.8 while completing this problem. You may want to eeference (ua Application Part A exercise with high levels of physical can induce asthma particulaty in ehildren, of 37 Cand a pressure of measured as 30 Lat a body temperature Whitney's lung capacity When Whitney had her asthma attack her e How many moles of oxygen is in her lungsfair contains 219% axygen breathing became more rapid, the temperature within her airways incieaaed, and the muscles Express your at ignificant fig ures and include the appropriate units. around the bronchi contracted causing a namowing of the anways. Whtney's symptoms, which occur within 5 to 20 min ater the stan of vigatous exercise, include shortness of breath, wheezing 0.0252 mol Whitney now does several things to prevent exercise induced asthma. She usus a pre-txercive PEARSON inhaled medication before she stats her actiity medication relaxes the muscles that sunound the airways and opens up does a warm-upset of exercises pollan counts Incorrect. Try Again; 2 attempts remaining high, she avoids exercising outdoors Chemistry

Explanation / Answer

Using the ideal gas equation , pV = nRT

where p is pressure in atm = 0.98553 atm

V is volume in L

n is number of moles of gas

R is universal gas constant = 0.0821 l/atm. K

And T is temperature in kelvin = 310 k

putting all the terms in formula

0.98553 x 3 = n x 0.0821 x 310

n = 0.116 moles

Out of these 0.116 moles , 21 % is oxygen

so 21% of 0.116 = 0.024 moles

The answer has to be given in 2 significant figures ( your answer has three) , and there is a slight calculation mistake too.

Hope this helps !!

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