Yes, calcium oxide (CaO) readily reacts with nitric acid (HNO₃). This chemical interaction is a classic example of an acid-base neutralization reaction, where a basic metal oxide combines with an acid.
The Chemical Reaction: Calcium Oxide and Nitric Acid
When calcium oxide, commonly known as quicklime, comes into contact with nitric acid, a vigorous neutralization reaction occurs. This process yields two primary products: aqueous calcium nitrate and water.
- Reactants:
- Calcium Oxide (CaO): A basic solid oxide.
- Nitric Acid (HNO₃): A strong mineral acid.
- Products Formed:
- Aqueous Calcium Nitrate (Ca(NO₃)₂): A soluble salt formed from the cation of the base and the anion of the acid.
- Water (H₂O): The typical product of an acid-base neutralization.
The balanced chemical equation for this reaction is:
CaO(s) + 2HNO₃(aq) → Ca(NO₃)₂(aq) + H₂O(l)
Practical Example and Stoichiometric Details
The reaction between calcium oxide and nitric acid is highly relevant in various chemical processes, including the synthesis of calcium nitrate, which is widely used as a fertilizer in agriculture. A specific instance of this reaction, as referenced, involves precise measurements of the reactants:
| Component | Quantity Specified in Reference |
|---|---|
| Calcium Oxide (CaO) | 0.4262 g |
| Nitric Acid (HNO₃) | 0.1250 L of a 0.06000 M solution |
| Products Formed | Aqueous Calcium Nitrate, Water |
This particular scenario describes a reaction where a solid mass of calcium oxide is introduced into a dilute solution of nitric acid, leading to the dissolution of the solid and the formation of an aqueous solution of calcium nitrate along with water.
Key Characteristics of the Reaction
- Neutralization: This is a direct acid-base reaction, where the basic properties of calcium oxide neutralize the acidic properties of nitric acid.
- Exothermic Nature: Typically, neutralization reactions release heat, making this an exothermic process.
- Salt Formation: The reaction produces calcium nitrate, a salt that is highly soluble in water, ensuring it remains in an aqueous solution.
In conclusion, the reaction between calcium oxide and nitric acid is a well-defined chemical process, central to various applications and chemical principles.
