Chemical Equilibria and Reaction Quotients

Many chemical reactions don't just go one way, they go forwards and backwards. Once there is balance between the two, this is an equilibrium. And we need to be able to predict how much stuff there will be at equilibrium! Get ready to bust out those ICE boxes, folks.
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Пікірлер: 405

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    @user-lg3nr4ec9j

    4 ай бұрын

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    3 ай бұрын

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    2 ай бұрын

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    @samstudiosofficial

    2 ай бұрын

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    2 ай бұрын

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  • @phyuhninnaing380
    @phyuhninnaing3807 жыл бұрын

    Thank you so much Professor Dave. The most unique thing about your lessons is...there is always a comprehension check test at the end of it. It makes a significant difference because most of the time, I have been watching all online lessons and I thought I understood, but when it comes to problems, I dont know how to use the theory I learnt. But now, with your videos, I can learn what kind of problems will come up for the theory I learnt which is very helpful. Thanks again.

  • @ProfessorDaveExplains

    @ProfessorDaveExplains

    7 жыл бұрын

    happy to help!

  • @jimmytorres7232

    @jimmytorres7232

    5 жыл бұрын

    Thank you professor Dave for a very clear explanations about Thermodynamics and Chemical Equilibrium. I really appreciate it.

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    @andredemetrius6083

    2 жыл бұрын

    i dont mean to be offtopic but does someone know a tool to get back into an Instagram account?? I stupidly lost the login password. I would appreciate any tips you can give me.

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    @themathguy5492

    2 жыл бұрын

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    @zoe-hc6nf

    Жыл бұрын

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  • @mniayb
    @mniayb5 жыл бұрын

    I’ve learned here in 6 minutes what I’ve been confused about for the past week. Thank you!

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    @RasmeyKyo

    3 жыл бұрын

    Damn

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    @philchernichenko94226 жыл бұрын

    It's always crazy to see just how quickly and thoroughly you can teach a whole concept in under 10 minutes. Amazing work

  • @kmarie1102
    @kmarie1102 Жыл бұрын

    I love that you are able to present concepts in a way that makes sense. A lot of professors jump into certain topics without really letting us know the importance of it, what its used for in or why we should care. You have an amazing gift of giving students the AHA moment and making things click! Thank you doesn't suffice for the work you do. Much love 🤗

  • @kapilmamtani8676
    @kapilmamtani86765 жыл бұрын

    This guy is awesome and sits among very few in the league of educating / Tutoring KZreadrs.

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    @AvnishKumar-gy5nh

    3 жыл бұрын

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  • @skcenior4227

    @skcenior4227

    3 жыл бұрын

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  • @bruh__9696

    @bruh__9696

    3 жыл бұрын

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    @preethamjee6022

    2 жыл бұрын

    @@AvnishKumar-gy5nh why are you boasting haha

  • @user-ny6hu2nc7e
    @user-ny6hu2nc7e2 ай бұрын

    The intro song aint lying he really knows a lot of stuff And explains it beautifully

  • @iqmal3910
    @iqmal39102 жыл бұрын

    Wow this is very helpful. I've been staring at my Icebox Questions for hours. Thanks Dave💪🏽

  • @krishnaswamy6684
    @krishnaswamy66844 жыл бұрын

    Prof.Dave, You explain everything so well. Guys, everyone watch the ad completely without skipping. This way, the prof gets some money. Thanks a million!

  • @kripashankarshukla4073
    @kripashankarshukla40737 жыл бұрын

    Thank you so much for explaining this concept. You are superb and amazing

  • @Ramusacol
    @Ramusacol Жыл бұрын

    Profesor Dave, your on line classes are helpful even to some teachers and professors. Your explanation is absolutely understandable. Thanks

  • @gilliancollins3324
    @gilliancollins33247 жыл бұрын

    Literally saving my life! Thanks so much

  • @plantbasedkavin
    @plantbasedkavin7 жыл бұрын

    Thank You so much for explaining this concept so easily and mess free.

  • @yeswecan1843
    @yeswecan18434 жыл бұрын

    PROFESSOR DAVE YOU. ARE. THE. BEST i've been confused about this lesson for months now THANK YOU

  • @saintofchelseathomascarlyl5713
    @saintofchelseathomascarlyl57136 жыл бұрын

    i thought this new semester was going to be a headache now im good thanks dude

  • @KD-qc6cb
    @KD-qc6cb3 жыл бұрын

    Thank you. Si. It really helps me to my perfomance task in General Chemistry.

  • @corey5454
    @corey54544 жыл бұрын

    Wish it was a step by step process on how you solved for x in the last example.

  • @themathguy5492

    @themathguy5492

    2 жыл бұрын

    It's in there, look at the previous example for help. Remember products over reactants

  • @nevilkumara9038
    @nevilkumara90386 жыл бұрын

    I'm from Sri Lanka.... The way you teach is really amazing..... Really it covers our A/L syllabus.thank you so much

  • @coolkid9770
    @coolkid97704 жыл бұрын

    I LUV YOU SOO MUCH!!!!! thank you thank you thank you!!!!! nobody told me anything about the ICE thing i had to assume everything myself...but thanks to this, im confident to answer these types of questions!!! THANK YOU THANKYOU THANKYOUU

  • @smellydonut5088
    @smellydonut50884 жыл бұрын

    god bless this man you make chem endurable :,)

  • @bihararathnayake4056
    @bihararathnayake40565 жыл бұрын

    WOW SIR.... GREAT SIMPLE EXPLANATION. THANK YOU

  • @mohamedlahai744
    @mohamedlahai7443 жыл бұрын

    Professor always make us come closer to this subjects thanks.

  • @mrmkhurram
    @mrmkhurram6 жыл бұрын

    A bundle of thanks Mr.Dave

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    @linde26033 жыл бұрын

    I have a test in a few days and you're saving my life dude

  • @marisolceja
    @marisolceja2 жыл бұрын

    Thank you so much for explaining so well!

  • @bartyfrbotros7718
    @bartyfrbotros77182 жыл бұрын

    Very simple and so helpful thank you dear dr

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    @loshithasahan71646 жыл бұрын

    I love your explanations ! wish you all the best.......

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    @jamesahmadpour90013 жыл бұрын

    Got a exam in 30 mins! Let’s hope Dave can save me from failing!

  • @jamesahmadpour9001

    @jamesahmadpour9001

    2 жыл бұрын

    @Mari Christofidou i passes with a decent grade!

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    @unfoundedidentity

    3 ай бұрын

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    @jpmhess4 жыл бұрын

    I tell everyone about your channel, god bless you

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    @mariamartinademarte4 жыл бұрын

    Bruuhh im on a professor dave marathon since online classes got me confused as heck and now i have a test and i barely know what a chemical formula is xD

  • @gardenmenuuu
    @gardenmenuuu3 жыл бұрын

    Congratulations for 1 millions hope to see u at 10 millions

  • @swordmas7544
    @swordmas75447 жыл бұрын

    Thankyou for the help sir

  • @teachtech8265
    @teachtech82655 жыл бұрын

    U really explained very well.... 🇮🇳loads of love frm India

  • @ModernEducationYt

    @ModernEducationYt

    3 жыл бұрын

    same

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    @allisonderovanesian64166 жыл бұрын

    Bless your soul this was great

  • @ThehouseofcricketVNR24
    @ThehouseofcricketVNR245 жыл бұрын

    Thanks Professor Dave.....

  • @beenarajan9982
    @beenarajan99825 жыл бұрын

    Great explanation sir.

  • @rikhilaannem6841
    @rikhilaannem68416 жыл бұрын

    Thank you Professor!

  • @esraamohamed9930
    @esraamohamed99306 жыл бұрын

    thanks a lot from my heart

  • @dennishandfield4369
    @dennishandfield43697 ай бұрын

    I would love to learn more about balance being stillness please!

  • @cynthiaouo8219
    @cynthiaouo82192 ай бұрын

    PROF DAVE I LOVE YOU THANK YOU SO MUCH

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    @adahamedadeeb58422 жыл бұрын

    the best presentation that i have ever seen

  • @MARYAM-mg2uk
    @MARYAM-mg2uk3 жыл бұрын

    شكرا بروفيسور💗💗💗

  • @aliyahlucy6127
    @aliyahlucy61276 жыл бұрын

    this helps out so much

  • @Aayesha739
    @Aayesha7394 ай бұрын

    Ya made this one go easy too....Lucky to have prof like ya 😊😇

  • @trollz768
    @trollz7682 жыл бұрын

    Thank you so much Professor Dave, I finally understood how to find an equilibrium concentration

  • @mjtolentino9294
    @mjtolentino92945 жыл бұрын

    your video really help in my review for board exam. thankyou so much. requesting for difficult example in problem solving on analytical chemistry.

  • @royo_05
    @royo_05 Жыл бұрын

    The life saver of students, thank you!

  • @neaeanblue
    @neaeanblue7 жыл бұрын

    Hello, On the checking comprehension why is [NO2]^2 changed to 4x^2 and not 2x^2? Is it because of the equation give?

  • @ProfessorDaveExplains

    @ProfessorDaveExplains

    7 жыл бұрын

    don't forget that when you do (2x)^2 the exponent operates on both the 2 and the x! so it becomes (2^2)(x^2) or 4x^2

  • @neaeanblue

    @neaeanblue

    7 жыл бұрын

    Professor Dave Explains Thank you. Your videos are great!

  • @agrianchimwaya5078
    @agrianchimwaya50783 жыл бұрын

    Thanks professor Dave,you really know how to explain....Zambia

  • @amr7233
    @amr72338 жыл бұрын

    Awesome videos!

  • @salonisharma2807
    @salonisharma28076 жыл бұрын

    Thank you so much sir😊

  • @effortlessschool
    @effortlessschool5 жыл бұрын

    He knows a lot about science stuff.. thnx !

  • @user-hr1eb7lh3p
    @user-hr1eb7lh3p8 ай бұрын

    Great explanation ❤

  • @jasoncarnevale2998
    @jasoncarnevale29985 жыл бұрын

    You’re the best Dave

  • @tahaazalai1995
    @tahaazalai19952 ай бұрын

    proffesor Dave you really exactly teacher who should all students rely on your lessons shorts and clear and convincing. i really appreciate you professor , but only few topics i didn't get on your lessons. that's Nervous system. CNS and PNS

  • @jyfelisilda8194
    @jyfelisilda81942 жыл бұрын

    Can I ask something? What if the K is greater than 1 but the product is a solid. Is it still product favored?

  • @pragyanagrawal3333
    @pragyanagrawal33338 жыл бұрын

    thanks

  • @DrTahirMahmood
    @DrTahirMahmood3 жыл бұрын

    good method for explanation

  • @pondererofpointlessdreams5029
    @pondererofpointlessdreams50292 жыл бұрын

    This is fifteen times more useful than anything my teacher taught me, lol

  • @raghulbalaji8226
    @raghulbalaji82262 жыл бұрын

    Your way of teaching is awesome 👌 sir. I like it. I am from India.

  • @shashankshekhar1266
    @shashankshekhar12665 жыл бұрын

    Hey Professor Christ. Suppose If I take the equation of PCl5 PCl3 and Cl2 at 1:44 . Now, since Kc(equilibrium constant) is independent of initial concentration, I can take Z molar solution and should still get the same answer. But if initial concentration is Z and degree of dissociation is a , Kc comes out to be (Za)^2/(Z-Za) => Za^2/(1-a). That is, it depends on Z(initial concentration) . PLEASE HELP.

  • @nahomsamuel2102
    @nahomsamuel2102Ай бұрын

    A hundred page unit summarized in one 7min video ur the best

  • @nicholaspoh4916
    @nicholaspoh49162 жыл бұрын

    May I know how you solve 0.126=x/0.10-2x? If possible, please show me step by step. Thank you Dave.

  • @Zero-th2sc

    @Zero-th2sc

    11 ай бұрын

    just cross multiply, the rest is just algebra manipulation

  • @anishmathewjose9374
    @anishmathewjose93744 жыл бұрын

    Thank you sooooooo much Professor Dave, you are a real life saver, Love from India::::))))

  • @raghulbalaji8226

    @raghulbalaji8226

    2 жыл бұрын

    Bro where are you from

  • @edutalib290
    @edutalib2903 жыл бұрын

    Covered most of the things of the topic in short time. This is good one.

  • @lauren9004
    @lauren90048 ай бұрын

    Thank you!

  • @suzydy9511
    @suzydy95115 жыл бұрын

    thaks professor dave. u really are amazing. you make it easier to understand chemistry.

  • @nejatahmed1584
    @nejatahmed15847 жыл бұрын

    I honestly love you! Thank you so Much! Many thanks 🤗🤗🤗🤗🤗.

  • @tez0999
    @tez09996 жыл бұрын

    Thank you sir

  • @angelicapayan9693
    @angelicapayan969310 ай бұрын

    Such a good video 🥹🥹

  • @kifter4254
    @kifter42545 жыл бұрын

    thank you sir.

  • @gouripandey4148
    @gouripandey41485 жыл бұрын

    Sir plz can you in another video of yours.."The addition of inert gas at equilibrium at : (a) Constant pressure (b) Constant volume...... I would be really thankful if you could help.😃

  • @sumitachakraborty1127
    @sumitachakraborty11276 жыл бұрын

    even the lower order students would top by hearing his lectures so innovative hats off!!!

  • @rabzy9591

    @rabzy9591

    2 жыл бұрын

    not me :/

  • @curtpiazza1688
    @curtpiazza16882 жыл бұрын

    Wow...it s all coming back to me!

  • @steffigridelli
    @steffigridelli3 жыл бұрын

    I love you ure literally saving my life

  • @aychaabs5024
    @aychaabs50242 жыл бұрын

    in 2:52 why did he only take away one (0.135) form the 1m instead of two? shouldn't the product be 0.730 as both reactants have 0.135. someone please explain

  • @NRAN477
    @NRAN4773 жыл бұрын

    he knows lot about science stuff professor dave explains!!

  • @soco2020
    @soco20202 жыл бұрын

    You can learn as much about chemistry from this man's youtube channel as you can at a four year university.

  • @DMGInfinityWarrior
    @DMGInfinityWarrior3 жыл бұрын

    content so good my chem 2 prof sends your videos to watch instead of him lecturing

  • @dr.bucci.
    @dr.bucci.5 жыл бұрын

    Thank you very much this is extremely helpful. However, I am confused about how you got 4x^2 in the numerator when solving for X using the Equilibrium Constant Expression. Could you explain why we use 4x^2 instead of 2x^2? Thanks again!

  • @ProfessorDaveExplains

    @ProfessorDaveExplains

    5 жыл бұрын

    you have to square the 2 as well!

  • @mrpickles1

    @mrpickles1

    2 жыл бұрын

    @@ProfessorDaveExplains Yeah i was super confused as to why the 2 remained AS WELL as having it raised to a power of 2. I thought the coefficient was what became the power.

  • @richardkeilig4062
    @richardkeilig4062 Жыл бұрын

    Prof Dave is the best.

  • @trevornixon642

    @trevornixon642

    Жыл бұрын

    Absolutely.

  • @Emilia-wh6oz
    @Emilia-wh6oz Жыл бұрын

    Hi, do someone know why in the formula "C" is raised to "c", "D" to "d" and so on? and why C is multiplied by D and A by B, before division.

  • @kyleburden1971
    @kyleburden19716 жыл бұрын

    Thank you so much for these videos!

  • @theepicsalad9576
    @theepicsalad95763 жыл бұрын

    I've never had an online tutor that has been the pillar of my chemistry marks. LMAO

  • @applejuice1557
    @applejuice15574 жыл бұрын

    Prof. you the best...

  • @bluemadridista_7
    @bluemadridista_74 ай бұрын

    wow❤ You're too good Thank you

  • @gabriellakaremire
    @gabriellakaremire3 жыл бұрын

    YOU ARE THE BEST BROOOOOOOOO

  • @1NikkiPink1
    @1NikkiPink16 жыл бұрын

    Hi professor Dave. Thanks again for the great videos. Quick question on the checking comprehension. Did you multiply both sides by negative one to get to the quadratic form? When I multiply both sides by the denominator, I get the opposites for addition and subtraction.

  • @ProfessorDaveExplains

    @ProfessorDaveExplains

    6 жыл бұрын

    nope i just brought the left side to the right side! if you have 0.036 - 0.36x and you bring it to the other side to be with 4x^2, you have to subtract the number and add the x term so the signs reverse.

  • @1NikkiPink1

    @1NikkiPink1

    6 жыл бұрын

    wow lol that was silly of me. Thanks for taking the time to answer such a mundane question! You are awesome!

  • @EarlSweatshirt1096

    @EarlSweatshirt1096

    2 жыл бұрын

    @@ProfessorDaveExplains this was also helpful to me, thank you

  • @aawb77
    @aawb777 жыл бұрын

    Thanks man

  • @devverma8412
    @devverma84123 жыл бұрын

    Thank you for teaching me jesus

  • @MrMustardYellow
    @MrMustardYellow6 жыл бұрын

    I swear my chem professor is the worst at teaching

  • @user-po4dv9sp3n

    @user-po4dv9sp3n

    6 жыл бұрын

    blueberry yup and so as mine ... she’s the reason why i lost my key to future tho 💔

  • @AsmaelFarsi

    @AsmaelFarsi

    5 жыл бұрын

    No , mine is worse 🙂💔

  • @mjdxp5688

    @mjdxp5688

    5 жыл бұрын

    My chemistry teacher doesn't even teach us...

  • @valarmathiselvaraj8517

    @valarmathiselvaraj8517

    4 жыл бұрын

    My science teacher too..

  • @adarshsaraf4932

    @adarshsaraf4932

    4 жыл бұрын

    My chem teacher is completely under qualified.

  • @chillandp9040
    @chillandp90406 жыл бұрын

    Very very nice

  • @mbwanamjaja5746
    @mbwanamjaja57463 жыл бұрын

    Thanks

  • @MJ-ek1jp
    @MJ-ek1jp3 жыл бұрын

    question. why did you take the positive root instead of the negative one?

  • @bepobey
    @bepobey Жыл бұрын

    Thanks!

  • @jnicagarcia224
    @jnicagarcia2242 жыл бұрын

    hi, where did you get the 0.10 m in the initial amount? thanks

  • @sanjaythiagarajan8349
    @sanjaythiagarajan83494 жыл бұрын

    You crazy man you saved my life

  • @retroarthanadi1626
    @retroarthanadi16262 жыл бұрын

    Hi Professor Dave, for the answer 0.12, I know in the table it's 2x so 2 * 0.06 would be 0.12, but the question asks for NO2 while in the table is the concentration for 2NO2 so shouldn't that be divided by 2 again and get 0.6 (NO2) as the final answer? Sorry for my bad english

  • @reddragonemperor1623

    @reddragonemperor1623

    8 ай бұрын

    No , if 1 mole of n2o4 gives 2 mole of no2 so in total moles of no2 will be 2 moles not 1 mole

  • @hofnihangula1816

    @hofnihangula1816

    4 ай бұрын

    @@reddragonemperor1623 Bruv Im getting the same anwser but my X is 0.949 Isthere a problem. pls help

  • @me6316
    @me63166 жыл бұрын

    you are amazing

  • @thesealab8947
    @thesealab89475 жыл бұрын

    Actually thought I knew what I was doing until I watched this, now I'm completely lost haha

  • @asheeshjha2182

    @asheeshjha2182

    3 жыл бұрын

    Are u sure about your thought 🤣🤣