Asam dan Basa dalam kehidupan sehari-hari | Sobat Kimia

Summary

In this video, Trio Puji Pangestu from the Chemistry Education Program at the University of Papua introduces the concepts of acids and bases, focusing on their presence in daily life. He explains the pH scale, where acids have a pH less than 7, bases more than 7, and neutral substances a pH of 7. The video explores everyday examples such as vinegar (acetic acid) in food, carbonic acid in carbonated drinks, citric acid in passion fruit, sodium hydroxide in soap, and aluminum hydroxide in antacid medications. The importance of using chemicals safely is emphasized throughout.

Takeaways

• 😀 Chemistry is fun and not as scary as it may seem! Let's learn together.
• 😀 Acids and bases are commonly found in everyday life, such as in soap, medicine, and drinks.
• 😀 The pH scale determines the acidity or basicity of a substance: pH < 7 is acidic, pH > 7 is basic, and pH = 7 is neutral.
• 😀 Vinegar is a common source of acetic acid, often added to food like meatballs.
• 😀 Be careful with excessive consumption of vinegar, as it can be harmful to your health.
• 😀 Carbonic acid is found in carbonated drinks like soda, giving them their refreshing taste.
• 😀 Don't overconsume carbonated beverages, as they can have negative health effects.
• 😀 Passion fruit contains citric acid, which contributes to its tart flavor.
• 😀 Sodium hydroxide (NaOH), also known as caustic soda, is used in soap and many cleaning products.
• 😀 Aluminium hydroxide is used in antacid medicines to neutralize stomach acid and protect the stomach lining.
• 😀 Always read the instructions when using chemical substances and use them safely.

Q & A

What does pH measure in a substance?

pH measures the acidity or alkalinity of a substance. A pH less than 7 indicates an acid, a pH greater than 7 indicates a base, and a pH of 7 indicates a neutral substance.

What is acetic acid, and where can we commonly find it?

Acetic acid is commonly found in vinegar. It is the substance responsible for vinegar's sour taste and is used in everyday food like in salad dressings or as a condiment for foods such as bakso (meatballs).

Why is it important to be careful when consuming vinegar?

Consuming vinegar in excess can have negative effects on health, as its acidity can irritate the digestive system or cause damage to teeth and the stomach lining.

What is carbonic acid, and where is it found?

Carbonic acid is found in carbonated beverages, like soda. It forms when carbon dioxide is dissolved in water, creating the fizz that gives soda its characteristic sensation.

What are the potential health risks of consuming too much carbonated soda?

Excessive consumption of carbonated soda can lead to health issues such as dental erosion, acid reflux, or even osteoporosis due to its acidity and high sugar content.

How is citric acid related to passion fruit?

Citric acid is a naturally occurring acid found in passion fruit, which is why the fruit has a tangy, sour taste. It is also present in other citrus fruits like lemons and oranges.

What is sodium hydroxide, and what are its common uses?

Sodium hydroxide (NaOH), also known as caustic soda, is commonly used in cleaning products and soap manufacturing. It is a strong base that helps break down grease and oils.

What is the danger of using sodium hydroxide in cleaning products?

Sodium hydroxide is highly caustic and can cause severe burns or damage to tissues if it comes into contact with the skin or eyes. It must be used with caution, following safety guidelines.

What role does aluminum hydroxide play in medicine?

Aluminum hydroxide is commonly used in antacid medications to neutralize stomach acid and alleviate symptoms of acid reflux or indigestion. It helps protect the stomach lining from irritation.

Why should we be cautious when handling chemical substances like sodium hydroxide and aluminum hydroxide?

Handling chemicals like sodium hydroxide and aluminum hydroxide requires caution due to their reactive and potentially harmful nature. Always follow usage instructions and wear appropriate protective gear.