Sodium Bicarbonate

Sodium bicarbonate, commonly known as baking soda, is a white crystalline powder with the chemical formula NaHCO3. It is a salt composed of sodium ions and bicarbonate ions. Sodium bicarbonate has multiple uses in various industries, including food, medicine, and cleaning.

Chemical Properties

When sodium bicarbonate is dissolved in water, it dissociates into sodium ions (Na+) and bicarbonate ions (HCO3-). This reaction makes it a weak base, which can act as a buffer to help maintain the pH balance in solutions.

Uses

1. Baking: Sodium bicarbonate is a common leavening agent used in baking. When combined with an acid (such as vinegar or buttermilk) and heat, it produces carbon dioxide gas, which causes dough to rise and results in a light, airy texture in baked goods.

2. Antacid: Due to its alkaline properties, sodium bicarbonate can be used to neutralize excess stomach acid and provide relief from heartburn and indigestion.

3. Cleaning: Sodium bicarbonate is an effective and eco-friendly cleaning agent. It can be used to scrub surfaces, remove odors, and even unclog drains when combined with vinegar.

Study Guide

Here are some key points to remember about sodium bicarbonate:

1. Sodium bicarbonate is a white crystalline powder with the chemical formula NaHCO3.
2. It dissociates into sodium ions and bicarbonate ions when dissolved in water.
3. It acts as a weak base and can be used as a buffering agent to maintain pH balance.
4. In baking, it is used as a leavening agent to help dough rise.
5. It can be used as an antacid to neutralize stomach acid and alleviate heartburn.
6. It is an eco-friendly cleaning agent for various household purposes.

Remember to always use sodium bicarbonate in accordance with safety guidelines and recommendations for specific applications.