59:39 The hydrogen sulfate ion (HSO₄⁻) is a weak acid. It should NOT be classified as a neutral anion.
@abdullahal-sukhni41014 жыл бұрын
I'm confused not about this but I thought that a weak base/acid should have a strong conjugate base/acid so why in the example at 58:09 is nh4+ a weak coniuagte acid?
@mrfarabaugh4 жыл бұрын
@@abdullahal-sukhni4101 The words "weak" and "strong" can be misleading. Ammonia (NH₃) is a weak base (Kb = 1.8E-5) Ammonium (NH₄⁺) is a weak acid (Ka = 5.6E-10)
@pengtroll62474 жыл бұрын
@@mrfarabaugh Thank you so much!
@abdullahal-sukhni41014 жыл бұрын
@@mrfarabaugh thanks so much man I really appreciate it
@lindaobrien28834 жыл бұрын
Thanks M. Farabaugh. This is exactly what my AP Chem class needs during this shutdown. I will use this kind of thing in regular session too. So well organized and to the point.
@gaurishagrawal94042 жыл бұрын
49:23, why not use stiochiometry to solve for [OCL-]?
@mrfarabaugh2 жыл бұрын
We cannot use stoichiometry to solve for the concentration of the hypochlorite ion. We don't know anything about the mass of NaOCl or the moles of OCl-. The only entry point into this problem is the pH. The pH allows us to calculate the concentration of the hydroxide ion. Since the hypochlorite ion is a weak base (Kb = 3.3E-7), we need to plug in the given information from the RICE table into the Kb expression. Then we can solve for the concentration of the hypochlorite ion.
@pengtroll62474 жыл бұрын
Wow wonderful video!!!
@nightlite7625 жыл бұрын
ap chem be like this sometimes. thanks
@muhammad-elfatihelsheikh12465 жыл бұрын
Chemistry memes WeirdChamp
@deet6 жыл бұрын
based
@Clubberoni3 жыл бұрын
based
@mrfarabaugh4 жыл бұрын
55:05 The hydrogen sulfate ion (HSO₄⁻) is a weak acid. It should NOT be classified as a neutral anion.