Answer to Question #100402 in General Chemistry for Aria

Question

How many moles of aqueous sodium ion and sulfide ion are formed when 2.50 mil of sodium sulfide dissolved in water.

Answer 1

$$Na_2S = 2Na^+ + S^{2-}$$

$n(Na^+) = 2*2.50 = 5.00 mol$

$n(S^{2-}) = 2.50 mol$