Examples of Arrhenius Acids: Identifying Common Substances

📚 Quick Study Guide

• 🧪 Arrhenius acids are substances that increase the concentration of hydrogen ions ($H^+$) in aqueous solution.
• 🍋 Common examples include hydrochloric acid ($HCl$), sulfuric acid ($H_2SO_4$), and nitric acid ($HNO_3$).
• ⚗️ The general formula for many simple Arrhenius acids can be represented as $HA$, where $A$ is an anion.
• 🔥 Strong acids completely dissociate in water, releasing a large number of $H^+$ ions. Weak acids only partially dissociate.
• 🔢 The strength of an Arrhenius acid is related to its dissociation constant, $K_a$.

🧪 Practice Quiz

1. Which of the following is an example of an Arrhenius acid?
   1. $NaCl$
   2. $KOH$
   3. $HBr$
   4. $NH_3$


2. What ion is released when an Arrhenius acid is dissolved in water?
   1. Hydroxide ion ($OH^−$)
   2. Hydrogen ion ($H^+$)
   3. Chloride ion ($Cl^−$)
   4. Sodium ion ($Na^+$)


3. Which of the following acids is considered a strong Arrhenius acid?
   1. Acetic acid ($CH_3COOH$)
   2. Hydrofluoric acid ($HF$)
   3. Sulfuric acid ($H_2SO_4$)
   4. Carbonic acid ($H_2CO_3$)


4. Which of the following is NOT a characteristic of Arrhenius acids?
   1. They taste sour.
   2. They turn litmus paper blue.
   3. They react with metals to produce hydrogen gas.
   4. They neutralize bases.


5. Which of the following is commonly found in car batteries and is a strong Arrhenius acid?
   1. Hydrochloric acid ($HCl$)
   2. Nitric acid ($HNO_3$)
   3. Sulfuric acid ($H_2SO_4$)
   4. Acetic acid ($CH_3COOH$)


6. Vinegar contains which Arrhenius acid?
   1. Hydrochloric acid ($HCl$)
   2. Sulfuric acid ($H_2SO_4$)
   3. Nitric acid ($HNO_3$)
   4. Acetic acid ($CH_3COOH$)


7. Which of the following is a monoprotic Arrhenius acid?
   1. $H_2SO_4$
   2. $H_3PO_4$
   3. $HCl$
   4. $H_2CO_3$