Water quality - Part 1 (1 Viewer)

[joesmith1975]

have done the answeres to this but arnt sure as if they are right, any ideas guys

 

[Dreamerish*~]

Post your answers.

 

[joesmith1975]

just don't understand 3 and a litle but of 2

 

[Dreamerish*~]

Explain why the acid added in this determination cannot be sulfuric acid.

This is because you are trying to determine the sulfate content in fertiliser. Sulfuric acid will ionise in solution to form hydronium ions and sulfate ions. The latter will add to the concentration of sulfates already in the fertiliser, making your results invalid.

Write the equation of the precipitation of barium sulfate

Ba²⁺_(aq) + SO₄^2-_(aq) → BaSO_4(s)

 

[joesmith1975]

Thanks for the help, really greatful for it