MCAT General Chemistry: Chapter 6 - Equilibrium (1/2)

[@editaed]

I am so glad I found your channel! You've made me MCAT prep a lot easier and faster, and it's so much easier to follow along when it's in lecture style compared to just reading the textbook. So grateful for you!

[@professoreman2289]

I’m so happy to hear that, you’re going to do amazing!! Comments like this make my day 😭❤️

[@thathtoo2588]

The lectures notes, from the file, doesn't match up with the video. Can you please update it. Love the MCAT review and it's been helping me out a lot.

[@professoreman2289]

Sure!

[@nightowl2125]

Love this video. Very well explained !! Thank you

[@professoreman2289]

Thank you so much!!!!!!!🥹❤️

[@briannamorgan4025]

can you further explain the 5% approximation rule and how it is applied? I understand its an assumption but im confused at how you're using it in the practice problems. thank you!

[@professoreman2289]

It works like this: if the value you’re solving for is very small compared to something else in your equation (usually the initial concentration of a substance), you can assume that it doesn’t change much. In other words, you can say it’s “close enough” to zero, and this simplifies your calculation. After you make this approximation, you should always check your work by calculating what percentage your approximation is of the initial concentration. If it’s less than 5%, your approximation was good. If it’s more than 5%, then you need to go back and solve the full equation because your approximation wasn’t accurate enough. This rule helps keep calculations manageable without losing too much accuracy.

[@briannamorgan4025]

@@professoreman2289 thank you so much!!!