Sodium Bicarbonate

Sodium bicarbonate, also known as baking soda, is a white, crystalline powder with the chemical formula NaHCO3. It has a slightly salty and alkaline taste and is commonly used in baking as a leavening agent. However, sodium bicarbonate has several other important uses and properties.

Chemical Properties:

• Formula: NaHCO3
• Molar Mass: 84.01 g/mol
• Solubility: Soluble in water
• pH: Basic (pH of a 0.1 M solution is about 8.3)
• Decomposition: When heated, it decomposes to produce carbon dioxide, water, and sodium carbonate

Uses of Sodium Bicarbonate:

Sodium bicarbonate has a wide range of uses, including:

1. Baking: It is commonly used as a leavening agent in baking, helping dough to rise.
2. Antacid: It can be used to neutralize stomach acid and provide relief from heartburn and indigestion.
3. Cleaning: Sodium bicarbonate is an effective and eco-friendly cleaning agent for various household surfaces.
4. Medical Uses: It is used in medical settings to treat conditions such as metabolic acidosis and certain drug overdoses.
5. Fire Extinguisher: Sodium bicarbonate can be used as a fire extinguisher for small grease or electrical fires.

Study Guide:

When studying sodium bicarbonate, it's important to focus on its chemical properties, uses, and practical applications. Here are some key points to include in your study guide:

1. Understand the chemical formula and molar mass of sodium bicarbonate.
2. Describe its solubility and the pH of its solutions.
3. Explain the decomposition of sodium bicarbonate when heated.
4. List and explain the various uses of sodium bicarbonate, including baking, antacid, cleaning, and medical applications.
5. Discuss the role of sodium bicarbonate as a fire extinguisher.
6. Explore any safety considerations or precautions when handling sodium bicarbonate.