Reacting Mass, Percentage Yield & Atom Economy | A Level Chemistry Masterclass

Explore More & Full Notes 📄 All A Level Chemistry Videos: https://drive.google.com/file/d/1s3I5... 📝 Download the full notes PDF of this lesson: https://payhip.com/b/e9Lam Tip: These are exact copies of the handwritten notes used in the video — includes slides, reaction summaries, diagrams, and rules for carboxylic acids and esters, perfect for revision and exam practice. Reacting Mass, Limiting Reagent, Percentage Yield and Atom Economy | A Level Chemistry Masterclass Description Introduction: Hello everybody! In this A Level Chemistry video, we continue exploring the Amount of Substance topic. We'll cover reacting mass calculations, identifying limiting and excess reagents, calculating percentage yield, and understanding atom economy. This video is suitable for all exam boards and is packed with examples to make these tricky concepts clear. Timestamps: 0:00 – Introduction 0:07 – Mole ratios and equations 0:33 – Magnesium and hydrochloric acid example 1:33 – Propane combustion example 2:53 – Ammonia production example 4:51 – Reacting mass calculations explained 5:15 – Iron oxide and carbon monoxide example 9:24 – Lead nitrate and lead iodide example 12:31 – Limiting factor and excess explained 12:55 – Examples of limiting reagent calculations 17:27 – Understanding yield: actual vs theoretical 19:18 – Calculating percentage yield 20:18 – Reacting mass + percentage yield example 23:37 – Introduction to atom economy 24:50 – Importance of atom economy for environment and cost 27:00 – Calculating atom economy examples 30:12 – Choosing the best reaction: copper sulfate case study 32:55 – Summary and closing Comprehensive Overview: In this video, you’ll learn how to: Use mole ratios to scale chemical reactions Perform reacting mass calculations using the box/grid method Identify the limiting reagent and excess reagent in reactions Calculate theoretical, actual, and percentage yields Understand and calculate atom economy Analyse how atom economy impacts cost, sustainability, and environmental impact Explore More: Check out all my Chemistry videos here: https://drive.google.com/file/d/1s3I5... Connect with Us: Instagram: @chemistrytutor123 TikTok: @chemistrytutor123 Email: [email protected] Hashtags: #ALevelChemistry #ReactingMass #LimitingReagent #PercentageYield #AtomEconomy #ChemistryMasterclass #Stoichiometry #ExamPreparation Correction: At 16:00 the H2 moles should be 1.8 ... and this means O2 is the limiting reagent. As a result of this 1 mole of water would be produced and the mass would be 18g