What is the concentration a. pH= 8.0 [H3O+] = 1 x 10-8 M b. pH = 6.50 [H3O+] = 3.2 x 10-7 M c. pH = 10.60 [H3O+] = 2.5 x 10-¹¹ M of H3O+ and OH- for each of the following conditions? [OH-] = 1 x 10-6 M [OH-] = 3.1 x 10-8 M [OH-] = 4.0 x 10-4 M

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Chapter1: Chemical Foundations
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**12. What is the concentration of H₃O⁺ and OH⁻ for each of the following conditions?**

a. pH = 8.0  
   \[ [\text{H}_3\text{O}^+] = 1 \times 10^{-8} \, \text{M} \]  
   \[ [\text{OH}^-] = 1 \times 10^{-6} \, \text{M} \]  

b. pH = 6.50  
   \[ [\text{H}_3\text{O}^+] = 3.2 \times 10^{-7} \, \text{M} \]  
   \[ [\text{OH}^-] = 3.1 \times 10^{-8} \, \text{M} \]  

c. pH = 10.60  
   \[ [\text{H}_3\text{O}^+] = 2.5 \times 10^{-11} \, \text{M} \]  
   \[ [\text{OH}^-] = 4.0 \times 10^{-4} \, \text{M} \]  

**13. If the pH > pKₐ, for a buffer, which is larger, the concentration of the acid [HA] or the concentration of the base [A⁻].**  
Base form [A⁻]
Transcribed Image Text:**12. What is the concentration of H₃O⁺ and OH⁻ for each of the following conditions?** a. pH = 8.0 \[ [\text{H}_3\text{O}^+] = 1 \times 10^{-8} \, \text{M} \] \[ [\text{OH}^-] = 1 \times 10^{-6} \, \text{M} \] b. pH = 6.50 \[ [\text{H}_3\text{O}^+] = 3.2 \times 10^{-7} \, \text{M} \] \[ [\text{OH}^-] = 3.1 \times 10^{-8} \, \text{M} \] c. pH = 10.60 \[ [\text{H}_3\text{O}^+] = 2.5 \times 10^{-11} \, \text{M} \] \[ [\text{OH}^-] = 4.0 \times 10^{-4} \, \text{M} \] **13. If the pH > pKₐ, for a buffer, which is larger, the concentration of the acid [HA] or the concentration of the base [A⁻].** Base form [A⁻]
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