Question

When hydrochloric acid reacts with sodium sulfide, hydrogen sulfide gas and sodium chloride are produced. How many moles of H2S will be generated by 2.56 moles of HCl?
2HCl + Na2S → H2S + 2NaCl

Answer 1

Answer:

mol H2S = 1.28 mol

Explanation:

balanced reaction:

• 2HCl + Na2S → H2S + 2NaCl

∴ moles HCl = 2.56 mol

⇒ moles H2S = ?

⇒ moles H2S = (2.56 mol HCl)*(mol H2S/2 moles HCl)

⇒ moles H2S = 1.28 mol