Question

Complete and balance the equations of the following reactions, each of which could be used to remove hydrogen sulfide from natural gas:

(a) Ca(OH)2(s) + H2S(g) -
(b) Na2CO3laq) + H2S(g)-

Answer 1

To remove hydrogen sulfide from natural gas, two reactions can be used: Ca(OH)2(s) + H2S(g) → CaS(s) + 2H2O(l) and Na2CO3(aq) + H2S(g) → Na2S(aq) + H2O(l) + CO2(g).

Step-by-step explanation:

To remove hydrogen sulfide from natural gas, we can use the following reactions:

(a) Ca(OH)2(s) + H2S(g) → CaS(s) + 2H2O(l)

In this reaction, solid calcium hydroxide (Ca(OH)2) reacts with hydrogen sulfide (H2S) to form solid calcium sulfide (CaS) and liquid water (H2O).

(b) Na2CO3(aq) + H2S(g) → Na2S(aq) + H2O(l) + CO2(g)

In this reaction, aqueous sodium carbonate (Na2CO3) reacts with hydrogen sulfide (H2S) to form aqueous sodium sulfide (Na2S), liquid water (H2O), and gaseous carbon dioxide (CO2).