In this lecture you will learn about pH Calculations and Polyprotic Acids. First you will learn how to calculate the pH in a Solution of a Weak Acid, in this case Vinegar, followed by finding the pH in a Solution of a Weak Base such as Ammonia. Next you will cover the Salts of Weak Acids with Strong Bases as well as Salts of Weak Bases with Strong Acids. You will also learn about Conjugate Acid Base Pairs Ka and Kb before delving into Polypotic Acids with its Successive Ka Values. Lastly you will see how to calculate the pH in a Polyprotic Acid Solution as well as the Salts of a Polyprotic Acid.
approximations (the 5% rule) in calculating pH in solutions of weak
acids or bases
bases of weak acids are weak bases and vice-versa
conjugates KaKb = Kw
calculations of pH in solutions of conjugates like acetate and
polyprotic acids successive Ka values get (much) smaller
calculations of pH in solutions of phosphoric acid, phosphate salts
pH Calculations, Polyprotic Acids
Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.
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