Turito - Concept Master - Grade 11 - Chemistry - Removal of Hardness of Water - Anita Ma'am скачать в хорошем качестве

Turito - Concept Master - Grade 11 - Chemistry - Removal of Hardness of Water - Anita Ma'am

Removal of Hardness of Water! This Grade 11 Chemistry topic is equally interesting and a little tricky. But today, Anita Ma’am will help you ace this concept in a smart and interesting way with a learning trick. The hardness of water occurs due to the presence of soluble bicarbonates, chlorides and sulfates of calcium and magnesium. Water which does not give lather with soap is hard water. The hardness of the water can be divided in parts. They are - 1. Temporary hardness 2. Permanent hardness Let's first learn how to remove temporary hardness of Water A. By Boiling: Soluble bicarbonates are converted into insoluble carbonates which are removed by filtration. Reactions: Ca(HCO3)2 → CaCO3↓ + H2O + CO2 B. By Clarks Method: Calcium hydroxide is Clark’s reagent. It removes the hardness of water by converting bicarbonates into carbonate. Reaction: Ca(OH)2 + Ca(HCO3)2 → 2CaCO3↓ + 2H2O Now let’s discuss how to remove permanent hardness of water. A. Calgon’s Process: In this method, sodium-hexa-meta-phosphate known as Calgon is used. The hardness in water is removed by the adsorption of Ca++ and Mg++ ions. B. Ion Exchange Resin Method: In this method, the permanent hardness of water is removed by using resins. Ca++/Mg++ ions are exchanged with Cl–, SO4-2 ions are exchanged with anion exchange resin (RNH2OH). Demineralized water is formed in this process. ⇒ 2RCOOH + Ca++ → (RCOO)2Ca + 2H+ ⇒ RNH2OH + Cl– → RNH2Cl + OH– ⇒ H+ + OH– → H2O C. Gan’s Permutit Method: In this method, sodium aluminum ortho silicate known as permutit or zeolite is used to remove the permanent hardness of water. Reaction: Na2 Al2 Si2 O8.xH2O + Ca++→ 2Na+ + Ca Al2 Si2 O8. xH2O Let's watch the complete video and understand the concept better from our expert educator. Join Turito Live Concept Classes every day on Turito App for FREE and learn concepts in a fun and interesting way. 👩‍🎓👨🏻‍🎓 👉 Download Turito App today to attend the FREE classes - https://turito.app.link/QUhi6Ol47jb 👉 Subscribe to Turito YouTube Channel to learn about more such exciting concepts -    / turitolive   👉 Check the playlist to access all the concept videos -    • Concept Master   Follow Turito on social media handles and get interesting updates about our latest offerings. 📢📢 ➡️ Facebook:   / turitolive   ➡️ Twitter:   / turitolive   ➡️Instagram:   / turitolive   ➡️LinkedIn:   / turitoindia   Thank you so much for watching the video. We hope, this session will help you get a better understanding of the topic. Please do comment below in the comment section and let us know what topics you want our teachers to discuss online. #RemovalofHardnessofwater #TemporaryHardness #PermanentHardness #Grade11Chemistry #IIT #JEE #NEET #LiveConceptClass #EdTech #Learn #Practice #Master #DownloadTuritoApp #Turito