Examples of Bronsted-Lowry Acids and Bases in Everyday Life

📚 Quick Study Guide

• 🧪 Brønsted-Lowry Acid: A substance that donates a proton ($H^+$).
• ⚗️ Brønsted-Lowry Base: A substance that accepts a proton ($H^+$).
• 💧 Water ($H_2O$) can act as both an acid and a base (amphoteric).
• 🍋 Common acids include citric acid (in citrus fruits) and acetic acid (vinegar).
• 🧼 Common bases include sodium hydroxide (in soap) and ammonia (in cleaning products).
• ⚖️ Acid-Base reactions involve the transfer of a proton from an acid to a base.
• 🌱 pH scale measures acidity and basicity: pH < 7 is acidic, pH > 7 is basic, pH = 7 is neutral.

🧪 Practice Quiz

1. Which of the following is a common example of a Brønsted-Lowry acid found in everyday life?
   1. A) Sodium Hydroxide
   2. B) Ammonia
   3. C) Citric Acid
   4. D) Potassium Hydroxide
2. Which of the following substances acts as a Brønsted-Lowry base?
   1. A) Hydrochloric Acid (HCl)
   2. B) Acetic Acid ($CH_3COOH$)
   3. C) Ammonia ($NH_3$)
   4. D) Nitric Acid ($HNO_3$)
3. Vinegar contains which acid?
   1. A) Hydrochloric Acid
   2. B) Sulfuric Acid
   3. C) Acetic Acid
   4. D) Nitric Acid
4. Which of the following can act as both a Brønsted-Lowry acid and base?
   1. A) $NaCl$
   2. B) $H_2O$
   3. C) $HCl$
   4. D) $NaOH$
5. Baking soda ($NaHCO_3$) is commonly used in baking. Does it act as an acid or a base in baking?
   1. A) Acid
   2. B) Base
   3. C) Neutral
   4. D) Neither
6. What happens to the pH when a Brønsted-Lowry acid is added to a solution?
   1. A) The pH increases
   2. B) The pH decreases
   3. C) The pH remains the same
   4. D) The pH becomes neutral
7. Household bleach typically contains sodium hypochlorite ($NaClO$). Does $NaClO$ act as an acid or a base?
   1. A) Acid
   2. B) Base
   3. C) Neutral
   4. D) Amphoteric