1. Chemical Formula:
- Potassium hydroxide: KOH
- Dilute Nitric Acid: HNO3 (with water)
2. Physical Properties:
- Appearance:
- KOH: White or colorless, crystalline solid
- Dilute HNO3: Colorless to pale yellow liquid
- Odor:
- KOH: Odorless
- Dilute HNO3: Sharp, pungent odor
3. pH Level:
- KOH: Strongly basic (pH > 11)
- Dilute HNO3: Strongly acidic (pH < 1)
4. Solubility:
- KOH: Highly soluble in water, dissociating into potassium ions (K+) and hydroxide ions (OH-).
- Dilute HNO3: Completely soluble in water, forming hydronium ions (H3O+) and nitrate ions (NO3-).
5. Reactivity:
- KOH is highly reactive:
- Reacts with acids to form salts and water.
- Corrosive to skin and tissue, can cause severe burns.
- Dilute HNO3 is moderately reactive:
- Reacts with metals to form salts and hydrogen gas.
- Can react with organic compounds, causing oxidation reactions.
6. Applications:
- KOH:
- Used in soap and detergent manufacturing.
- Electrolyte in alkaline batteries.
- Production of fertilizers.
- Dilute HNO3:
- Used in the production of fertilizers.
- Laboratory reagent for acid-base reactions and metal dissolution.
- Etching and engraving of metals.
7. Safety:
- Both compounds require proper handling and safety precautions due to their corrosive nature.
- KOH can be caustic and cause skin irritation, while dilute HNO3 can release toxic fumes.
It's important to note that the properties of dilute nitric acid can vary depending on its concentration. The information provided here applies to dilute nitric acid, typically with a concentration of around 10% to 20%.
