Chemical formula of baking soda is:

• A. MgSO₄
• B. Na₂CO₃
• C. NaHCO₃
• D. MgCO₃

The chemical formula of baking soda is C. NaHCO₃. This compound is also known as sodium bicarbonate. It’s a versatile substance commonly used in cooking, cleaning, and even in some medicinal applications. Let’s break down what this means and why NaHCO₃ is the correct answer.

Understanding Sodium Bicarbonate

Sodium bicarbonate consists of sodium (Na), hydrogen (H), carbon (C), and oxygen (O) atoms. The formula NaHCO₃ indicates that there is one sodium atom, one hydrogen atom, one carbon atom, and three oxygen atoms in each molecule of baking soda. This unique combination gives baking soda its distinctive properties.

Why Other Options Are Incorrect

• A. MgSO₄: This is magnesium sulfate, commonly known as Epsom salt, which is used for various purposes, including gardening and muscle relaxation.
• B. Na₂CO₃: This is sodium carbonate, also known as soda ash or washing soda, which is used in glass making and as a cleaning agent.
• D. MgCO₃: This is magnesium carbonate, which can be used as a drying agent or in dietary supplements.

Each of these compounds has different chemical properties and uses, which is why they are not interchangeable with baking soda.

Applications of Baking Soda

Baking soda is widely recognized for its role in baking, where it acts as a leavening agent. When combined with an acid (like vinegar or lemon juice), it produces carbon dioxide gas, which helps dough rise. Beyond the kitchen, it’s also effective for deodorizing, cleaning, and even soothing minor skin irritations.

Real-World Example

Imagine you’re baking a cake. When you mix baking soda with an acidic ingredient, the reaction produces bubbles of carbon dioxide. These bubbles expand when heated, causing the cake to rise and become fluffy. This is a practical demonstration of the chemical properties of NaHCO₃ in action.

Conclusion

In summary, the correct chemical formula for baking soda is NaHCO₃. Understanding its composition and how it differs from other compounds helps clarify its unique role in both culinary and household applications. If you have any more questions about chemical compounds or their uses, feel free to ask!