O2 partial 25~40 mmHg O2 40 mmHg 25℃ water 1.0 L O2 mass

O2 partial 25~40 mmHg O2 40 mmHg 25℃ water 1.0 L O2 mass

 

 

The partial pressure of O2 in your lungs

varies from 25 mmHg to 40 mmHg.

What mass of O2 can dissolve in 1.0 L of water at 25℃

if the partial pressure of O2 is 40 mmHg?

 

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P = k_h • C

> P = partial pressure of gas

> C = concentration of gas

> k_h = Henry’s law constant

> O2의 k_h = 757 atm/M

( 참고 https://ywpop.tistory.com/1911 )

 

 

 

C = P / k_h

= (40/760 atm) / (757 atm/M)

= 6.95×10^(-5) M

 

 

 

(6.95×10^(-5) mol/L) (1 L) (32 g/mol)

= (6.95×10^(-5)) (1) (32)

= 0.002224 g

 

 

 

답: 0.0022 g

 

 

 

 

[키워드] 폐 속 O2의 부분압력 기준문서