ÁCIDOS METAFOSFÓRICO, PIROFOSFÓRICO E ORTOFOSFÓRICO | Entenda o grau de hidratação!

Hey everyone! In this lesson, you'll understand logically and visually how the names metaphosphoric acid, pyrophosphoric acid, and orthophosphoric acid are formed—all from the increasing hydration of phosphoric anhydride (P₂O₅)! If you've seen these names in questions or tables and felt lost, relax: here, Marcelão will show you step-by-step how each of these acids is formed, based on the number of water molecules that react with the acidic oxide. You'll also understand why the prefix "ortho" can be omitted in everyday Chemistry, and you'll be introduced to the difference between acidic oxide and oxyacid, which are different things and VERY frequently tested in exams! 🔍 What you will learn in this lesson: • Difference between acidic oxide and oxyacid • Formation of metaphosphoric acid (HPO₃) with 1 mol of water • Formation of pyrophosphoric acid (H₄P₂O₇) with 2 mols of water • Formation of orthophosphoric acid (H₃PO₄) with 3 mols of water • Simplification of balanced molecular formulas • When to use (or not use) the prefixes “meta”, “pyro” and “ortho” • Introduction to the nomenclature that will be explored in more depth in the oxides lesson 💡 Support the channel! If you enjoyed this in-depth lesson and want to help the project grow: 💸 Click the "BECOME A MEMBER" button for just R$ 2.99/month! 📨 Make a donation via PIX: [email protected] 📲 Follow me on Instagram: @marcelaodaquimica ⏱️ Timeline (approximate): Introduction to the topic and context of the lesson Review of the concept of acidic oxide Difference between acidic oxide and oxyacid Reaction of phosphoric anhydride with 1 water: metaphosphoric acid Reaction with 2 waters: formation of pyrophosphoric acid Reaction with 3 waters: formation of orthophosphoric acid Explanation of the origin of the names and when to use each one Visual reinforcement of the formulas and simplification of the compounds Note: content will be revisited in the oxides lesson 📚 Why is this important? Knowing how to interpret the different names of the same acid based on its hydration is essential for nomenclature issues, substance recognition, and acid formation reactions. This is a topic that frequently appears in college entrance exams, ENEM (Brazilian National High School Exam), and military entrance exams. 💡 Support the channel! If you enjoyed this in-depth lesson and want to help the project grow: 💸 Click the "BECOME A MEMBER" button for just R$ 2.99/month! 📨 Make a donation via PIX: [email protected] 📲 Follow me on Instagram: @marcelaodaquimica #MetaphosphoricAcid #PyrophosphoricAcid #OrthophosphoricAcid #InorganicChemistry #ChemicalNomenclature #Oxides #MarcelãoDaQuímica