Problem: When hydrochloric acid is poured over potassium sulfide, 43.1 mL of hydrogen sulfide gas is produced at a pressure of 754 torr and 25.8 oC. Write an equation for the gas-evolution reaction.a) HCl +  K2S →  H2S + KClb) 2HCl +  K2S →  H2S + 2KClc) 2HCl +  KS →  H2S + KCld) HCl +  KS →  H2S + KCl

FREE Expert Solution

Hydrochloric acid = HCl

potassium sulfide = K2S

hydrogen sulfide = H2S


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Problem Details

When hydrochloric acid is poured over potassium sulfide, 43.1 mL of hydrogen sulfide gas is produced at a pressure of 754 torr and 25.8 oC

Write an equation for the gas-evolution reaction.


a) HCl +  K2S →  H2S + KCl

b) 2HCl +  K2S →  H2S + 2KCl

c) 2HCl +  KS →  H2S + KCl

d) HCl +  KS →  H2S + KCl

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