Answer to Question #145449 in General Chemistry for Andrew

Question

What effect would chlorine (Cl2), hypochlorite (OCl-), and nitrite (NO2-) have on the dissolved oxygen of a water sample? Write equations to represent their individual interactions.

Answer 1

When they react with water they all form a weak acid

Cl₂ + H₂O = HOCl + H⁺ + Cl^-

OCl^- + H₂O = HOCl + OH^-

NO^2- + H₂O = HNO₂ + H⁺