균형 맞추기. Br2 + H2O + SO2 → HBr + H2SO4

균형 맞추기. Br2 + H2O + SO2 → HBr + H2SO4

Br2(g) + H2O(l) + SO2(g) → HBr(aq) + H2SO4(aq)

 

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▶ 참고: 미정계수법 [ https://ywpop.tistory.com/3902 ]

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aBr2 + bH2O + cSO2 → dHBr + eH2SO4

 

 

Br: 2a = d ... (1)

H: 2b = d + 2e ... (2)

O: b + 2c = 4e ... (3)

S: c = e ... (4)

 

 

a = 1 이라 두면,

from (1), d = 2

 

from (2), 2b = 2 + 2e ... (5)

from (3), b = 4e – 2c

from (4), b = 4e – 2e = 2e ... (6)

 

(6)식을 (5)식에 대입하면,

4e = 2 + 2e

2e = 2

e = 1

 

from (4), c = 1

 

from (6), b = 2

 

 

답: Br2 + 2H2O + SO2 → 2HBr + H2SO4

Br2(g) + 2H2O(l) + SO2(g) → 2HBr(aq) + H2SO4(aq)