Classify each of the following statements as true or false. True/False? Statement The equilibrium constant for the reaction 3A(g) + B(g) = BA3(g) is 2.4E-5. If the initial concentrations of A, B, and BA3 are 0.10M, 0.45M, and 0.71M respectively, the reaction will shift right to achieve equilibrium. If K = 1.0E-8 for the reaction A(g) + 2B(g) = C(g), the products predominate at equilibrium. When a system reaches equilibrium, the rate of the forward reaction equals the rate of the reverse reaction. > >

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### Equilibrium and pH True/False Questions

#### Instructions:
Classify each of the following statements as true or false.

#### Statements and Answer Choices:

1. **Statement:**
   The equilibrium constant for the reaction 3A(g) + B(g) ⇌ BA3(g) is 2.4E-5. If the initial concentrations of A, B, and BA3 are 0.10M, 0.45M, and 0.71M respectively, the reaction will shift right to achieve equilibrium.
   
   **Answer Choices:**
   - True
   - False

2. **Statement:**
   If K = 1.0E-8 for the reaction A(g) + 2B(g) ⇌ C(g), the products predominate at equilibrium.
   
   **Answer Choices:**
   - True
   - False

3. **Statement:**
   When a system reaches equilibrium, the rate of the forward reaction equals the rate of the reverse reaction. 
   
   **Answer Choices:**
   - True
   - False
   
4. **Statement:**
   The pH of water at 50°C is 6.63 so it would be considered acidic. (Kw at 50°C is 5.5E-14.) 
   
   **Answer Choices:**
   - True
   - False

5. **Statement:**
   For 0.10M monoprotic acids, the larger the value of Ka, the greater the % ionization.
   
   **Answer Choices:**
   - True
   - False

#### Explanation of Statements:

1. **Equilibrium Constant and Reaction Shift:**
   - Understand the relationship between the initial concentrations and the equilibrium constant to predict the direction of the shift.

2. **Equilibrium Constant Value (K):**
   - Relate the small value of K to the relative concentration of reactants and products at equilibrium.

3. **Dynamic Equilibrium Concept:**
   - Reinforce the principle that at equilibrium, the rates of the forward and reverse reactions are equal.

4. **pH and Kw Relationship:**
   - Use the given pH and Kw to determine if water at 50°C is acidic or not relative to the definition of pH.

5. **Acid Ionization and Ka Value:**
   - Compare the percent ionization of monoprotic acids based on their Ka values to
Transcribed Image Text:### Equilibrium and pH True/False Questions #### Instructions: Classify each of the following statements as true or false. #### Statements and Answer Choices: 1. **Statement:** The equilibrium constant for the reaction 3A(g) + B(g) ⇌ BA3(g) is 2.4E-5. If the initial concentrations of A, B, and BA3 are 0.10M, 0.45M, and 0.71M respectively, the reaction will shift right to achieve equilibrium. **Answer Choices:** - True - False 2. **Statement:** If K = 1.0E-8 for the reaction A(g) + 2B(g) ⇌ C(g), the products predominate at equilibrium. **Answer Choices:** - True - False 3. **Statement:** When a system reaches equilibrium, the rate of the forward reaction equals the rate of the reverse reaction. **Answer Choices:** - True - False 4. **Statement:** The pH of water at 50°C is 6.63 so it would be considered acidic. (Kw at 50°C is 5.5E-14.) **Answer Choices:** - True - False 5. **Statement:** For 0.10M monoprotic acids, the larger the value of Ka, the greater the % ionization. **Answer Choices:** - True - False #### Explanation of Statements: 1. **Equilibrium Constant and Reaction Shift:** - Understand the relationship between the initial concentrations and the equilibrium constant to predict the direction of the shift. 2. **Equilibrium Constant Value (K):** - Relate the small value of K to the relative concentration of reactants and products at equilibrium. 3. **Dynamic Equilibrium Concept:** - Reinforce the principle that at equilibrium, the rates of the forward and reverse reactions are equal. 4. **pH and Kw Relationship:** - Use the given pH and Kw to determine if water at 50°C is acidic or not relative to the definition of pH. 5. **Acid Ionization and Ka Value:** - Compare the percent ionization of monoprotic acids based on their Ka values to
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