Titration is a laboratory technique used to determine the concentration of an unknown solution (the analyte) by reacting it with a solution of known concentration (the titrant). In AP Chemistry, you'll often deal with acid-base titrations. The key is understanding stoichiometry and the concept of the equivalence point, where the acid and base have completely neutralized each other. At the equivalence point, the moles of acid are equal to the moles of base, considering their stoichiometric coefficients. You'll use this information, along with molar mass, to calculate the unknown concentration. Mastering this skill will unlock tons of AP Chemistry problems!
Match the term to its correct definition:
| Term | Definition |
|---|---|
| 1. Titrant | A. The point in a titration where the acid and base have completely reacted. |
| 2. Analyte | B. A substance that changes color to signal the endpoint of a titration. |
| 3. Equivalence Point | C. The solution of known concentration used in a titration. |
| 4. Endpoint | D. The solution of unknown concentration being analyzed in a titration. |
| 5. Indicator | E. The point in a titration where a distinct color change is observed. |
Match the correct term with the correct definition. For example 1-C, 2-A, etc.
Titration is a technique used to determine the ___________ of a solution. At the ___________ point, the moles of acid and base are stoichiometrically ___________. An ___________ is often used to visually signal the ___________.
Imagine you're titrating a strong acid with a strong base. Explain why the pH at the equivalence point is 7. What happens to the pH if you are titrating a weak acid with a strong base? 🤔
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