Empirical Data Collection and Analysis | Chapter 12 Lec 1 | 9th Class Chemistry | New Book 2025

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This is Lecture 1 of Chapter 12 – Empirical Data Collection and Analysis, from the 9th Class Chemistry – New Syllabus 2025 (Punjab Board).

In this lecture, we cover the Introduction to the chapter with focus on:
✅ Meaning of empirical data
✅ Issues with Units
✅ SI units and its advantages

This lecture helps students understand how scientific knowledge is built through real observations and experiments rather than assumptions, forming the foundation of reliable and reproducible results in chemistry.

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