Consider this reaction: H2S + HNO3 S + NO + H2O Reduction half-reaction: N+5 + 3e- N+2 Oxidation half-reaction: S-2 S + 2e- After balancing the chemical equation, what are the coefficients for these compounds?

Respuesta :

After balancing the chemical equation, what are the coefficients for these compounds?

H2S      


⇒ 3

HNO3    


⇒ 2

Works for EDG



Answer:

Coefficient of [tex]H_2S[/tex] = 3

Coefficient of [tex]HNO_3[/tex] = 2

Coefficient of [tex]NO[/tex] = 2

Coefficient of [tex]H_2O[/tex] = 4

Coefficient of [tex]S[/tex] = 3

Explanation:

Overall reaction

[tex]H_2S + HNO_3\rightarrow S + NO + H_2O[/tex]

Reduction half-reaction:

[tex]N^{+5} + 3e^-\rightarrow N^{+2}[/tex]...(1)

Oxidation half-reaction:

[tex] S^[-2}\rightarrow S + 2e^-[/tex]...(2)

2×(1) + 3×(2)

[tex]2N^{+5} + 6e^-+3S^[-2}\rightarrow 2N^{+2}+3S + 6e^-[/tex]

[tex]2N^{+5} +3S^[-2}\rightarrow 2N^{+2}+3S[/tex]

[tex]3H_2S + 2HNO_3\rightarrow 3S + 2NO + 4H_2O[/tex]

Coefficient of [tex]H_2S[/tex] = 3

Coefficient of [tex]HNO_3[/tex] = 2

Coefficient of [tex]NO[/tex] = 2

Coefficient of [tex]H_2O[/tex] = 4

Coefficient of [tex]S[/tex] = 3