Equation for NH3 + H2O (Ammonia + Water)

In this video we will describe the equation NH3 + H2O and write what happens when NH3 is dissolved in water.

When NH3 is dissolved in H2O (water) a small amount will dissociate into NH4+ and OH- ions. To show that they are dissolved in water we can write (aq) after each. The (aq) shows that they are aqueous – dissolved in water.

Even though NH3 (Ammonia) very soluble in water, it is a weak base.   Only 0.42% of the NH3 molecules will form NH4OH.  This an equilibrium.  At any given time 0.42% of the NH3 molecules will be in the form of NH4OH.    (see https://en.wikipedia.org/wiki/Ammonia....

Often we consider equations showing ions to be net ionic equations. For help with net ionic equations see How to Write and Balance Net Ionic Eq... .

If you need to know how to balance chemical reactions, see my complete tutorial on balancing all types of chemical equations:

Balancing Equations in 5 Easy Steps: How to Balance Chemical Equations in ...
More Practice Balancing: Balancing Chemical Equations Practice...

Drawing/writing done in InkScape (https://inkscape.org/). Screen capture done with Camtasia Studio 4.0. Done on a Dell Dimension laptop computer with a Wacom digital tablet (Bamboo).

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