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Calculating [H₃O⁺] and pH (worked examples) (video) | Khan Academy. Explore.
Course: Organic chemistry > Unit 2. Lesson 3: Organic acid-base chemistry. Acid-base definitions. Organic acid-base mechanisms. Ka and acid strength. Ka and pKa review. Using a pKa table. Using pKa values to predict the position of equilibrium. Stabilization of a conjugate base: electronegativity.
A few of the most important functional groups in biological molecules are shown in the table below. Functional groups can be classified as hydrophobic or hydrophilic based on their charge and polarity characteristics. The only hydrophobic group below is the methyl (CH 3 ) group, which is nonpolar. The remaining six functional groups in the ...
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Introduction to pH. Effect of pH on strength of acids and bases. Identify the nature of a substance based on pH. Strong and weak acids/bases. Strength of solution vs concentration. pH change & the concentration of H+/OH-. Effect of concentration on pH change.
How the Henderson-Hasselbalch equation can be used to look at the ratio of conjugate acid and base using relationship between buffer pH and pKa.
Video transcript. - [Instructor] If you believe that salts are always neutral, then you are in for a surprise. See salts, they can be both acidic and basic as well. In this video, we are going to take some salts, and try to identify their nature. So first of all, lets begin with what we already know.