Säuren, Basen und Laugen

Video (11 Minuten)

Last week, Hank talked about how stuff mixes together in solutions. Today, and for the next few weeks, he will talk about the actual reactions happening in those solutions - atoms reorganizing themselves to create whole new substances in the processes that make our world the one we know and love. This week, we focus on acids and bases and their proton-exchanging ways. Watch this video in Spanish on our Crash Course en Español channel! https://youtu.be/Or2h02mqvD4 Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App! Download it here for Apple Devices: https://apple.co/3d4eyZo Download it here for Android Devices: https://bit.ly/2SrDulJ Table of Contents Chemistry Can Cause Death 00:00 Acids and Bases are Complicated 02:25 Conjugate Bases 05:37 Conjugate Acids 04:48 Acid-Base Stoichiometry 06:49 Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Instagram - https://www.instagram.com/thecrashcourse/ CC Kids: http://www.youtube.com/crashcoursekids

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Video (11 Minuten)

In this episode, Hank goes over Reversible Reactions, the water dissociation constant, what pH and pOH actually mean, Acids, Bases, and Neutral Substances as well as the not-so-terrifying Logarithms, strong acids, weak acids, and how to calculate pH and pOH. Oh, and litmus paper! Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App! Download it here for Apple Devices: https://apple.co/3d4eyZo Download it here for Android Devices: https://bit.ly/2SrDulJ -- Table of Contents Reversible Reactions 3:40 Water Dissociation Constant 5:00 Acids, Bases, & Neutral Substances 6:38 Strong and Weak Acids 7:43 Logarithms 1:46 Calculating pH and pOH 8:45 Cool Mathematical Connections 9:54 Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Instagram - https://www.instagram.com/thecrashcourse/ CC Kids: http://www.youtube.com/crashcoursekids

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Video (11 Minuten)

In this episode, Hank talks about how nutty our world is via Buffers! He defines buffers and their compositions and talks about carbonate buffering systems in nature, acid rain, pH of buffers, and titration. Plus, a really cool experiment using indicators to showcase just how awesome buffers are. Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App! Download it here for Apple Devices: https://apple.co/3d4eyZo Download it here for Android Devices: https://bit.ly/2SrDulJ -- Table of Contents Nature is Nutty 0:00 Carbonate Buffering and Acid Rain 0:35 Definition of Buffers 1:47 Composition of Buffers 2:26 pH of Buffers 3:33 Titration 7:43 Carbonate Buffering in Nature 7:12 - Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Instagram - https://www.instagram.com/thecrashcourse/ CC Kids: http://www.youtube.com/crashcoursekids

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Video (11 Minuten)

Acidity is a tricky concept, and it’s not always like how we see it in the movies. As organic chemists, we need to know how to predict the strength of weak acids and bases. In this episode of Crash Course Organic Chemistry, we’ll learn four key factors that we can use to predict relative acidity. This important tool will help us us to predict the products of chemical reactions. Episode Sources: Chen, J., Zhao, Y., Li, X. C., & Zhao, J. H. (2019). Pyridine alkaloids in the venom of imported fire ants. Journal of agricultural and food chemistry, 67(41), 11388-11395. Everts, S. (2014). “An Ant’s Acid Antidote” Chemical and Engineering News, 92(9), 44-45. Trummal, A., Lipping, L., Kaljurand, I., Koppel, I. A., & Leito, I. (2016). Acidity of strong acids in water and dimethyl sulfoxide. The Journal of Physical Chemistry A, 120(20), 3663-3669. Series Sources: Brown, W. H., Iverson, B. L., Ansyln, E. V., Foote, C., Organic Chemistry; 8th ed.; Cengage Learning, Boston, 2018. Bruice, P. Y., Organic Chemistry, 7th ed.; Pearson Education, Inc., United States, 2014. Clayden, J., Greeves, N., Warren., S., Organic Chemistry, 2nd ed.; Oxford University Press, New York, 2012. Jones Jr., M.; Fleming, S. A., Organic Chemistry, 5th ed.; W. W. Norton & Company, New York, 2014. Klein., D., Organic Chemistry; 1st ed.; John Wiley & Sons, United States, 2012. Louden M., Organic Chemistry; 5th ed.; Roberts and Company Publishers, Colorado, 2009. McMurry, J., Organic Chemistry, 9th ed.; Cengage Learning, Boston, 2016. Smith, J. G., Organic chemistry; 6th ed.; McGraw-Hill Education, New York, 2020. Wade., L. G., Organic Chemistry; 8th ed.; Pearson Education, Inc., United States, 2013. *** Watch our videos and review your learning with the Crash Course App! Download here for Apple Devices: https://apple.co/3d4eyZo Download here for Android Devices: https://bit.ly/2SrDulJ Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse Thanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever: Catherine Conroy, Patty Laqua, Leonora Rossé Muñoz, Stephen Saar, John Lee, Phil Simmons, Alexander Thomson, Mark & Susan Billian, Junrong Eric Zhu, Alan Bridgeman, Jennifer Smith, Matt Curls, Tim Kwist, Ron Lin, Jonathan Zbikowski. Jennifer Killen, Sarah & Nathan Catchings, Brandon Westmoreland, team dorsey, Trevin Beattie, Eric Prestemon, Sam Ferguson, Yasenia Cruz, Eric Koslow, Indika Siriwardena, Khaled El Shalakany, Shawn Arnold, Tom Trval, Siobhán, Ken Penttinen, Nathan Taylor, William McGraw, Justin Zingsheim, Andrei Krishkevich, Jirat, Brian Thomas Gossett, SR Foxley, Ian Dundore, Jason A Saslow, Jessica Wode, Mark, Caleb Weeks, Sam Buck -- Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support Crash Course on Patreon: http://patreon.com/crashcourse CC Kids: http://www.youtube.com/crashcoursekids

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Tool

Veranschaulicht den Äquivalenzpunkt und gegebenenfalls den Pufferbereich mit dem Halbäquivalenzpunkt für Säure-Base-Titrationen

Chemie Lernprogramme

Tool

Zeigt für wichtige organische Säuren und Basen anhand von Struktureigenschaften die Substituenteneffekte an

Chemie Lernprogramme

Tool

Generiert einfache Säure-Base-Reaktionsgleichungen aus eingegebenen Teilchennamen der Edukte

Chemie Lernprogramme

Tool

Berechnung des pH-Werts mit Hilfe der Henderson-Hasselbalch-Gleichung für die meisten gängigen Puffersysteme

Chemie Lernprogramme