1. What is Calcium Nitrate?

Calcium nitrate is an inorganic compound with the formula Ca(NO₃)₂. It is a colorless salt that absorbs moisture from the air and is commonly found as a tetrahydrate.

2. Molar Mass Calculation

The molar mass is calculated by summing the atomic masses of all atoms in the formula:

Where:

• Ca — Calcium (40.08 g/mol)
• N — Nitrogen (14.01 g/mol)
• O — Oxygen (16.00 g/mol)

Calculation: 40.08 + (2 × 14.01) + (6 × 16.00) = 164.10 g/mol

3. Chemical Properties

Details: Calcium nitrate is highly soluble in water and deliquescent. It decomposes at high temperatures to form calcium oxide, nitrogen dioxide, and oxygen.

4. Common Uses

Applications: Used in fertilizers, wastewater treatment, concrete acceleration, and as a component in some cool packs.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between calcium nitrate and ammonium nitrate?
A: Calcium nitrate contains calcium and nitrate ions, while ammonium nitrate contains ammonium and nitrate ions. They have different properties and uses.

Q2: Is calcium nitrate dangerous?
A: It can be an irritant to skin and eyes, and may be harmful if swallowed, but is generally considered low toxicity.

Q3: Why is calcium nitrate used in fertilizers?
A: It provides both calcium and nitrogen, two essential plant nutrients, in a highly soluble form.

Q4: What is the hydrated form of calcium nitrate?
A: The most common hydrated form is calcium nitrate tetrahydrate (Ca(NO₃)₂·4H₂O) with molar mass 236.15 g/mol.

Q5: How should calcium nitrate be stored?
A: In airtight containers in a cool, dry place as it absorbs moisture from the air.