Editing Diprotic Weak Acid Titration Lab Questions
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1. Write the acid ionization equilibrium constant chemical reaction (i.e. the reactions showing the species as one H<sup>+</sup> at a time is removed from the acid).<br> <br> <br> <br> <br> <br> 2. Using your actual pH curve and knowledge of titration, determine the K<sub>a1</sub> and K<sub>a2</sub> for this acid (Maleic acid).<br> <br> <br> <br> <br> <br> <br> <br> 3. Go to the AP book or look online and find the actual K<sub>a1</sub> and K<sub>a2</sub>. Give two potential reasons why the experimental value were not the same as the actual values.<br> <br> <br> <br> <br> <br> <br> <br> 4. Explain what an amphoteric substance is and indicate which species from the chemical reactions in Question 1 is(are) amphoteric.<br> <Br> <br> <br> <br> <br> <br> <br> <br> 5. Calculate the pH of a 1.0M Maleic acid solution? Use actual values for acid ionization constants.<br> <br> <br> <br> <br> <br> <br> <br> <br>
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