Write the balanced NET IONIC equation for the reaction that occurs when ammonium chloride and calcium hydroxide are combined.
This reaction is classified as
A. Strong Acid + Strong Base
B. Weak Acid + Strong Base
C. Strong Acid + Weak Base
D. Weak Acid + Weak Base
The extent of this reaction is:
.
A. ... Below 50%
B. ... 50%
C. ... Above 50%
D. ... 100%
I assume these are aqueous solutions of Ca(OH)2 and NH4Cl but the reaction is more effective with aqueous Ca(OH)2 and solid NH4Cl.
molecular equation is:
2NH4Cl(aq) + Ca(OH)2(aq) ==> 2NH3(g) + 2H2O(l) + CaCl2(aq)
ionic equation is:
2NH4^+ + 2Cl^-(aq) + Ca^2+(aq) + 2OH^-(aq) ==> 2NH3(g) + 2H2O(l) + Ca^+(aq) + 2Cl^-(aq)
net ionic equation is:
2NH4^+(aq) + 2OH^-(aq) ==> 2NH3(g) + 2H2O(l)
To determine the balanced net ionic equation for the reaction between ammonium chloride (NH4Cl) and calcium hydroxide (Ca(OH)2), we first need to write the balanced chemical equation:
NH4Cl + Ca(OH)2 → NH3 + H2O + CaCl2
Next, we can separate the soluble substances into ions:
NH4Cl → NH4+ + Cl-
Ca(OH)2 → Ca2+ + 2OH-
The net ionic equation only includes the species that undergo a chemical change. In this case, the ammonium ion (NH4+) and the hydroxide ion (OH-) react to form ammonia (NH3) and water (H2O):
NH4+ + OH- → NH3 + H2O
Therefore, the balanced net ionic equation is:
NH4+ + OH- → NH3 + H2O
Based on this reaction, we can determine the classification and extent of the reaction as follows:
This reaction involves a weak acid (NH4+) and a strong base (OH-), so it is classified as a weak acid + strong base reaction (Option B).
Since the reaction involves the complete conversion of reactants to products, the extent of the reaction is 100% (Option D).
To determine the balanced net ionic equation for the reaction between ammonium chloride (NH4Cl) and calcium hydroxide (Ca(OH)2), we first need to identify the reactants and their respective ions in solution.
The reactants are ammonium chloride (NH4Cl) and calcium hydroxide (Ca(OH)2). When these compounds dissolve in water, they dissociate into their constituent ions:
NH4Cl ==> NH4+ + Cl-
Ca(OH)2 ==> Ca2+ + 2OH-
The next step is to determine if any of the ions will react with each other and form a precipitate (insoluble solid) or a gas. In this case, the ammonium ion (NH4+) and the hydroxide ion (OH-) will combine to form water (H2O) and ammonium hydroxide (NH4OH).
NH4+ + OH- ==> NH4OH
Since calcium is a cation and chloride is an anion, they won't react further in this reaction.
Now that we have identified the net ionic equation, we can write the balanced equation by ensuring that the number of atoms on each side of the equation is equal:
NH4+ + OH- ==> NH4OH
Thus, the balanced net ionic equation for the reaction between ammonium chloride and calcium hydroxide is:
NH4+ + OH- ==> NH4OH
Now, let's consider the classification and extent of this reaction:
This reaction is a combination of a strong acid (NH4+) and a strong base (OH-). The ammonium ion (NH4+) can act as a weak acid, but in this reaction, it is completely ionized due to the strong base OH-.
Therefore, the classification of this reaction is A. Strong Acid + Strong Base.
In terms of the extent of this reaction, the ammonium ion (NH4+) reacts completely with the hydroxide ion (OH-) to form ammonium hydroxide (NH4OH). Therefore, the extent of this reaction is D. 100%.
So, the answer is A. Strong Acid + Strong Base and D. 100%.