posted by Monty .
The Concentration of Cu2+ ions in the water (which also contains sulfate ions) discharged from a certain industrial plant is determined by adding excess sodium sulfide(Na2S) solution to .800 L of the water. Molecular Equation:
Na2S(aq) CuSO4(aq) --> Na2SO4(aq) + CuS(s)
Write the net ionic equation and calculate the molar concentration of Cu2+ in the water sample if .0177g of solid CuS is formed.