Ammonia, NH3, is a weak base that is often used in household cleaning solutions. what is the pH of a solution of ammonia that contains 5.0 g of ammonia in 709 mL

11.44

Explanation:

= Base ionization constant of ammonia =

m = Mass of ammonia = 5 g

V = Volume of ammonia = 709 mL =

M = Molar mass of ammonia = 17.03 g/mol

Molaritiy of ammonia

We have the relation

The pH of the solution is 11.44.

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.