Solve Neutralization Problem: H ion Concentrations & Final pH

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In summary, the concentration of H ions in a neutralization problem can be calculated using the formula C1V1=C2V2. The H ion concentration and pH have an inverse relationship in neutralization problems, with an increase in H ion concentration resulting in a decrease in pH. The final pH can be found using the Henderson-Hasselbalch equation and can be influenced by factors such as the strength and initial concentrations of the acid and base, as well as the presence of buffers or indicators. The final pH in a neutralization problem can be lower than 7 if a strong acid and weak base are used.
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Homework Statement



We have a solution of 1oo ml and the concentration of H ion is 3x1o^-2 M.
We have another solution of 100 ml and the H ion concentration is 10^-12 M.

After mixing the solutions,what would be the pH of the final solution?

Homework Equations


The Attempt at a Solution


Actually I don't know how to start.
 
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  • #2
What is a neutralization reaction?
 
  • #3
Think about the definition of pH.
 

1. How do I calculate the concentration of H ions in a neutralization problem?

In a neutralization problem, the concentration of H ions can be calculated using the formula C1V1=C2V2, where C1 and V1 represent the initial concentration and volume of the acid, and C2 and V2 represent the final concentration and volume of the solution.

2. What is the relationship between H ion concentration and pH in a neutralization problem?

In a neutralization problem, the H ion concentration and pH have an inverse relationship. As the concentration of H ions increases, the pH decreases, and vice versa.

3. How do I find the final pH in a neutralization problem?

To find the final pH in a neutralization problem, you can use the Henderson-Hasselbalch equation: pH = pKa + log([A-]/[HA]), where pKa is the acid dissociation constant, [A-] is the concentration of the conjugate base, and [HA] is the concentration of the acid.

4. What factors influence the final pH in a neutralization problem?

The final pH in a neutralization problem can be influenced by several factors, including the strength of the acid and base, their initial concentrations and volumes, and the presence of any buffers or indicators in the solution.

5. Can the final pH in a neutralization problem be lower than 7?

Yes, the final pH in a neutralization problem can be lower than 7 if the acid used is a strong acid and the base used is a weak base. This will result in a solution with a higher concentration of H ions, leading to a lower pH value.

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