https://www.khanacademy.org/science/bmc-grade-9-science/x345505a97fc4a662:acids-bases-and-salts/x345505a97fc4a662:acids/v/introduction-to-ph-in 2025-05-29T08:15:21.460476965Z Introduction to pH Let's understand the pH scale! Dubverse video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Introduction to pH Let's understand the pH scale! https://cdn.kastatic.org/ka-youtube-converted/WEt4DfFdT1s.mp4/WEt4DfFdT1s.mp4 321 Strength of acid and base https://www.khanacademy.org/science/odia-class-10-physical-sciences/x28e877d8a7566183:acids-bases-and-salts/x28e877d8a7566183:strength-of-acid-and-base/e/ph-and-strength 2021-04-29T07:49:52Z Effect of pH on strength of acids and bases Let's practice finding the strength of the solution given pH values. Chaitra exercise https://www.khanacademy.org/science/odia-class-10-physical-sciences/x28e877d8a7566183:acids-bases-and-salts/x28e877d8a7566183:strength-of-acid-and-base/e/ph-and-ph-scale 2026-03-07T04:41:01.851344552Z Identify the nature of a substance based on pH (BASIC) Let's learn about pH and pH scale Chaitra exercise https://www.khanacademy.org/science/odia-class-10-physical-sciences/x28e877d8a7566183:acids-bases-and-salts/x28e877d8a7566183:strength-of-acid-and-base/v/strong-and-weak-acidsbases-acids-bases-and-salts-chemistry-khan-academy 2020-07-21T06:02:26Z Strong and weak acids/bases Strong acids/bases dissociate completely whereas weak acids/bases dissociate partially. Ram Prakash video https://cdn.kastatic.org/googleusercontent/b7B9L9CtCzphWHZbJhrcwa_6VDVxGMVpDFYxVcKkZt1F9uSajRQgS0rEYhj6LALY45FbQZZXAwXXr_KTZFwcbG2y Strong and weak acids/bases Strong acids/bases dissociate completely whereas weak acids/bases dissociate partially. https://cdn.kastatic.org/ka-youtube-converted/HyKNyV0dfTI.mp4/HyKNyV0dfTI.mp4 316 Strength of acid and base https://www.khanacademy.org/science/odia-class-10-physical-sciences/x28e877d8a7566183:acids-bases-and-salts/x28e877d8a7566183:strength-of-acid-and-base/v/strength-of-solution-vs-concentration-acids-bases-and-salts-chemistry-khan-academy 2020-07-21T06:02:34Z Strength of solution vs concentration Strength of an acidic solution depends on the concentration of H+ ions in it. Ram Prakash video https://cdn.kastatic.org/googleusercontent/E8i5hq-4MrbIzec7v8mW27FEZstjVUbe73lCpILGcUypXjGmfUQxYzlMuVRO6ph-mfLHEd6JoBVYeymfrAeqkNuq Strength of solution vs concentration Strength of an acidic solution depends on the concentration of H+ ions in it. https://cdn.kastatic.org/ka-youtube-converted/0J4hLIYnAo0.mp4/0J4hLIYnAo0.mp4 551 Strength of acid and base https://www.khanacademy.org/science/odia-class-10-physical-sciences/x28e877d8a7566183:acids-bases-and-salts/x28e877d8a7566183:strength-of-acid-and-base/v/ph-change-the-concentration-of-hoh-acid-bases-and-salts-chemistry-khan-academy 2020-07-21T06:02:30Z pH change & the concentration of H+/OH- Let's solve problems to see how pH change affects the concentration of H+ and OH- Ram Prakash video https://cdn.kastatic.org/googleusercontent/sxovnUWS2Bjahfg0TLGJUcSXgBHVI-1VLJCTU6_6W3BzcOHQzTPkYFKA6GORHbbzjXCdReriXbdjJwRwYhXi6fxY pH change & the concentration of H+/OH- Let's solve problems to see how pH change affects the concentration of H+ and OH- https://cdn.kastatic.org/ka-youtube-converted/jG7Wr9MIwVQ.mp4/jG7Wr9MIwVQ.mp4 386 Strength of acid and base https://www.khanacademy.org/science/odia-class-10-physical-sciences/x28e877d8a7566183:acids-bases-and-salts/x28e877d8a7566183:strength-of-acid-and-base/e/ph--concentration 2021-04-29T08:02:07Z Effect of concentration on pH change Let's practice questions involving relationship between pH and concentration of H+ ions. Chaitra exercise