Class 9 CONCENTRATION ,WAYS OF MEASURING ,NUMERICALS

📘 Class 9 Science | Solutions – Concentration vs Solubility | Ways to Measure Concentration | Numericals (NCERT) In this video, we will clearly understand the difference between concentration and solubility, learn the different ways to express concentration of a solution, and solve important numericals step by step. Topics Covered: ✅ Difference between Concentration and Solubility ✅ Mass by Mass Percentage (% w/w) ✅ Mass by Volume Percentage (% w/v) ✅ Volume by Volume Percentage (% v/v) ✅ Parts Per Million (PPM) – Introduction ✅ Practice Numericals with Detailed Solutions ✅ Important NCERT & Exam-Oriented Questions ✅ Practice Questions for Self-Assessment Students of CBSE, ICSE, and IB Board will find this lesson useful for building strong concepts and scoring better in examinations. 📚 Practice Questions: Calculate the mass by mass percentage of a solution containing 10 g of salt in 90 g of water. A solution contains 20 g of sugar in 200 mL of solution. Find its mass by volume percentage. A solution contains 15 mL of alcohol in 100 mL of solution. Calculate the volume by volume percentage. Calculate the concentration of a solution prepared by dissolving 8 g of sodium chloride in 200 mL of water. Challenge Question: A solution contains 12 g of glucose in 300 g of solution. Find the mass percentage. 👍 If you found this video helpful, Like, Share & Subscribe to Aakash Academy of Education for more Class 9 Science lectures, NCERT solutions, and exam preparation videos. #Class9Science #Solutions #Concentration #Solubility #Numericals #NCERT #CBSE #ICSE #IBBoard #Science #AakashAcademyOfEducation