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기체의 분자량. 1.500 L 356 mmHg 22.5℃ 0.9847 g

by 영원파란 2020. 9. 10.

AdSense@ywpop

기체의 분자량. 1.500 L 356 mmHg 22.50.9847 g

 

 

An unknown gas is placed in a 1.500 L bulb at a pressure of 356 mmHg

and a temperature of 22.5, and is found to weigh 0.9847 g.

What is the molecular weight of the gas?

 

---------------------------------------------------

 

PV = nRT

( 참고 https://ywpop.tistory.com/3097 )

 

n = PV / RT

= [(356/760) (1.500)] / [(0.08206) (273.15+22.5)]

= 0.02896 mol

 

 

 

n = W / M

( 참고 https://ywpop.tistory.com/7738 )

 

M = W / n

= 0.9847 g / 0.02896 mol

= 34.0 g/mol

 

 

 

 

[키워드] 356 mmHg 22.5℃ 1.500 L 유리구에 들어있는 기체의 질량은 0.9847 g

 

 

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