0.37 g of H2 gas reacts with 5.9 L of Cl2 gas at STP

0.37 g of H2 gas reacts with 5.9 L of Cl2 gas at STP

 

 

0.37 g of hydrogen gas reacts with 5.9 L of chlorine gas at STP.

How many liters of HCl is produced?

 

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균형 맞춘 화학 반응식

H2 + Cl2 → 2HCl

 

 

 

H2의 몰질량 2.02 g/mol 이므로,

0.37 g / (2.02 g/mol) = 0.18 mol H2

 

 

 

5.9 L × (1 mol / 22.4 L) = 0.26 mol Cl2

( 참고: 몰부피 https://ywpop.tistory.com/8321 )

 

 

 

H2 : Cl2 = 1 : 1 계수비(= 몰수비) 이므로,

몰수가 작은 H2가 한계 반응물.

( 참고: 한계 반응물 https://ywpop.tistory.com/3318 )

 

 

 

H2 : HCl = 1 : 2 계수비(= 몰수비) 이므로,

생성되는 HCl의 몰수 = 2 × 0.18 mol = 0.36 mol

 

 

 

0.36 mol × (22.4 L/mol) = 8.1 L

 

 

 

답: 8.1 L