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Mostafa El-Naggar (M.Sc) Assistant Lecturer of Analytical Chemistry Faculty of Science, Alexandria University, Egypt In this comprehensive analytical chemistry lecture, we delve into the fundamentals of buffer solutions and the methodologies for accurate pH calculations across various chemical scenarios. This video includes: • Calculations of [hydrogen ion] concentration and pH for very dilute solutions of strong acids & strong bases, • Definition and Function of Buffer Solutions: Understanding how buffers maintain pH stability in chemical systems. • Types of Buffer Systems: Exploration of acidic and basic buffers and their real-world applications. • Henderson-Hasselbalch Equation: Step-by-step guidance on using this equation for pH calculations. • pH Calculations for Different Solutions: Techniques for calculating pH in strong and weak acid/base solutions. • Common Mistakes and Troubleshooting: Identifying and correcting common errors in pH computation. Timestamps: 00:00 - Revision on the previous video 06:32 - pH Calculations for very dilute solutions of strong acids & strong bases. 20:45 - pH calculations for buffer solutions and buffer capacity 01:48:40 - pH Calculations for acidic, basic and neutral salts 02:01:13 - pH Calculations for mixtures of strong acids & strong bases. For Contact: 📍 Facebook personal account:   / mostafa.elnaggar.14224   📍 Youtube channel:    / @mostafanaggar-ie4jn   📍 Email address: [email protected] 📍 Mobile (Whatsapp): +20 10 12463029