WebLower PKa values --> higher Ka values stronger the acid. As Ka decreases, does the acid become stronger or weaker? The lower the Ka value, the weaker the acid. AKa. Not all of the acid (HA) ionizes into [H3O+][A-] What is the value of Ka for weak acids? Ka <1 The acid remains more undissociated. WebHydrofluoric acid has a Ka value of 6.3 times 10 to the negative fourth, and acetic acid has a Ka value of 1.8 times 10 to the negative fifth. Since both of these have Ka values less than one, they're both considered to be weak acids. However, the higher the Ka value, the stronger the acid.
16.4: Acid Strength and the Acid Dissociation Constant (Ka)
WebTable of Acids with Ka and pKa Values* CLAS Acid HA A-Ka pKa Acid Strength Conjugate Base Strength Hydroiodic HI I-Hydrobromic HBr Br-Perchloric HClO4 ClO4-Hydrochloric … Web4 de fev. de 2024 · A large Ka value indicates a strong acid because it means the acid is largely dissociated into its ions. A large Ka value also means the formation of products in the reaction is favored. A small Ka … on saying please question answers class 12
What do Ka and Kb vales say about acid and base strength? - Toppr
WebFor example, the Ka constant for acetic acid (CH 3 COOH) is 0.0000158 (= 10-4.8), but the pKa constant is 4.8, which is a simpler expression. In addition, the smaller the pKa value, the stronger the acid. For example, the pKa value of lactic acid is about 3.8, so that means lactic acid is a stronger acid than acetic acid. WebClick here👆to get an answer to your question ️ Assertion: Larger the value of pKa , weaker is the acid.Reason: High value of Ka indicates a strong tendency of the acid to dissociate. Solve Study Textbooks Guides. Join / Login >> Class 11 ... Higher the value of K a , stronger is the acid. WebFor example, the Ka constant for acetic acid (CH 3 COOH) is 0.0000158 (= 10-4.8), but the pKa constant is 4.8, which is a simpler expression. In addition, the smaller the pKa value, … on sb