Nitrous acid is added to a solution of potassium phosphate. Write the net ionic reaction, and indicate which reaction is favored
The net ionic equation for the reaction between nitrous acid (HNO2) and potassium phosphate (K3PO4) is:
2 H+ (aq) + 3 PO4^3- (aq) + 2 NO2^- (aq) + 3 K+ (aq) -> 2 K+ (aq) + 3 PO4^3- (aq) + 2 HNO2 (aq)
In this reaction, the nitrous acid (HNO2) dissociates into H+ and NO2^- ions, while the potassium phosphate (K3PO4) dissociates into K+ and PO4^3- ions.
From the net ionic equation, it can be observed that there is no formation of any solid precipitate or gas. Therefore, no reaction is favored in terms of the formation of a new product. The reaction between nitrous acid and potassium phosphate is a neutralization reaction.