pH Calculations | Strong Acids & Bases | 16.4 General Chemistry скачать в хорошем качестве

pH Calculations | Strong Acids & Bases | 16.4 General Chemistry

pH Calculations for Strong Acids and Bases Chad provides a comprehensive lesson on how to calculate the pH for Strong Acids and Strong Bases. As strong acids dissociate completely, calculating the H+ concentration is typically straightforward. From there you simply take the negative log to obtain the pH. Though H2SO4 is a polyprotic, strong acid, only the first H+ is strongly acidic and the small difference the second H+ makes is discussed. Finally, the unusual case of a very, very, VERY dilute solution of a strong acid is discussed and why the pH of such a solution is essentially still 7. As strong bases dissociate completely calculating the OH- concentration is typically straightforward. As the Group 2 metal hydroxides have 2 OH- in the formula (for example Ba(OH)2) this must be accounted for as both hydroxide ions dissociate completely. From there you simply take the negative log to obtain the pOH and then subtract from 14 to obtain the pH. Finally, the unusual case of a very, very, VERY dilute solution of a strong base is discussed and why the pH of such a solution is essentially still 7. I've embedded this playlist as a course on my website with all the lessons organized by chapter in a collapsible menu and much of the content from the study guide included on the page. Check this lesson out at https://www.chadsprep.com/chads-gener... If you want all my study guides, quizzes, final exam reviews, and practice exams, check out my General Chemistry Master Course at https://www.chadsprep.com/genchem-you... 00:00 Lesson Introduction 00:26 Calculating the pH of Strong Acids 03:38 pH of H2SO4 Solutions 05:56 pH of VERY Dilute Strong Acids 07:35 Calculating the pH of Strong Bases 08:50 pH of Ba(OH)2 Solutions 10:50 pH of VERY Dilute Strong Bases https://www.chadsprep.com/ #generalchemistry #chemistrytutorial #acidsandbases