For the reaction between sodium hydroxide and ammonium chloride in aqueous solution, we’re asked to write: the balanced formula equation, the complete ionic equation, and the net ionic equation.
We solve the problem in 4 steps:
Step 1: Write the formula equation.
Step 2: Balance the formula equation.
Step 3: Determine the complete ionic equation.
Step 4: Determine the net ionic equation.
In aqueous solution, the solubility rules are:
•Soluble Ionic Compounds:
▪Group 1A ions (Li+, Na+, K+, etc.) and Ammonium ion (NH4+) are soluble
▪ Nitrates (NO3-), Acetates (CH3COO- or C2H3O2-), and most Perchlorates (ClO4-) are soluble
▪ Cl-, Br-, and I- are soluble except when paired with Ag+, Pb2+, Cu+, Hg22+
▪ Sulfates (SO42-) are soluble except those of Ca2+, Sr2+, Ba2+, Ag+, and Pb2+
sodium hydroxide (aq) + ammonium chloride (aq) →
Balanced Formula Equation:
Complete Ionic Equation:
Net Ionic Equation: