Calcium hydroxide and ammonium chloride when heated together will give an important product. This compound may be obtained dry by
dissolving it in water, recrystallizing it and then drying in the oven
passing it through a concentrated aqueous solution of sodium hydroxide
passing it through calcium oxide
passing it through concentrated sulphuric acid
passing it through anhydrous calcium choride
Explanation
No explanation available
Video Explanation
No video available
Post your Contribution
Discussions (9)
Let's break it down:
* Calcium hydroxide and ammonium chloride reaction:
* When you heat these two together, they produce ammonia gas (NH₃), calcium chloride (CaCl₂), and water (H₂O).
* The important product in this case is the ammonia gas.
* Getting dry ammonia:
* Ammonia gas is a base, and we want to remove any water vapor that comes along with it.
* Since ammonia is a basic gas, we will want to dry it with a basic drying agent.
* Why the answer is C:
* Calcium oxide (CaO) is a basic drying agent. It will react with any water present, leaving dry ammonia gas.
* Also, remember that ammonia reacts with acids, so using an acidic drying agent, like sulfuric acid, would cause the ammonia to react and be lost.
Here's why the other options aren't the best:
* A. dissolving it in water, recrystallizing it and then drying in the oven:
* Ammonia is a gas, so you can't really dissolve it in water and recrystallize it.
* B. passing it through a concentrated aqueous solution of sodium hydroxide:
* This would introduce more water vapor, not remove it.
* D. passing it through concentrated sulphuric acid:
* This would react with the ammonia, not dry it.
* E. passing it through anhydrous calcium chloride:
* Calcium chloride is a good drying agent for many things, but it also reacts with ammonia, so it is not suitable in this case.
So, the best answer is C. passing it through calcium oxide.
