A Careless Student Who Was Instructed to Combine 4 $\rightarrow$ Na₂SO₄(aq) + H₂S(g)
A) 0

A careless student who was instructed to combine 4.00 g of sodium sulfate with a solution containing 10.0 g of H₂SO₄ (98.08 g/mol) instead combined 4.00 g of sodium sulfide (78.05 g/mol) with the acid. The acid reacted with the sodium sulfide, according to the following reaction, to produce the foul-smelling and highly toxic hydrogen sulfide gas. How many moles of hydrogen sulfide gas were produced?
Na₂S(s) + H₂SO₄(aq) $\rightarrow$ Na₂SO₄(aq) + H₂S(g)

A) 0.154 mol
B) 0.102 mol
C) 0.0512 mol
D) 0.0257 mol
E) 0.0315 mol