Hess's Law Problems & Enthalpy Change - Chemistry

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  • Опубліковано 21 вер 2017
  • This chemistry video tutorial explains how to solve common hess's law problems. It discusses how to calculate the enthalpy change of a reaction using hess's law.
    First Law of Thermodynamics: • First Law of Thermodyn...
    Thermochemistry Equations:
    • Thermochemistry Equati...
    Internal Energy, Heat, and Work:
    • Internal Energy, Heat,...
    Thermochemical Equations:
    • Thermochemical Equations
    Specific Vs Molar Heat Capacity:
    • What Is The Difference...
    ________________________________
    Basic Calorimetry Problems:
    • How To Solve Basic Cal...
    Final Temperature Calorimetry Problems:
    • Final Temperature Calo...
    Latent Heat of Fusion & Vaporization:
    • Latent Heat of Fusion ...
    Coffee Cup Calorimeter:
    • Coffee Cup Calorimeter...
    More Calorimeter Problems:
    • Bomb Calorimeter vs Co...
    __________________________________
    Specific Heat Capacity Problems:
    • Specific Heat Capacity...
    Hess Law Problems:
    • Hess's Law Problems & ...
    More Hess Law Problems:
    • Hess Law Chemistry Pro...
    Enthalpy of Formation & Heat Combustion:
    • Enthalpy of Formation ...
    Enthalpy Practice Problems:
    • Enthalpy Change of Rea...
    __________________________________
    Speed of Light, Frequency, & Wavelength:
    • Speed of Light, Freque...
    Final Exams and Video Playlists:
    www.video-tutor.net/
    Full-Length Videos and Worksheets:
    / collections

КОМЕНТАРІ • 431

  • @TheOrganicChemistryTutor
    @TheOrganicChemistryTutor  7 місяців тому +15

    Final Exams and Video Playlists: www.video-tutor.net/
    Full-Length Videos & Worksheets: www.patreon.com/MathScienceTutor/collections

    • @highestpeeqs9532
      @highestpeeqs9532 5 місяців тому +1

      Jesus loves yall and died for us! Jesus calls for all of us to repent!

  • @123superpokemon1999
    @123superpokemon1999 5 років тому +994

    Why are there not people like you teaching chemistry classes in colleges????? My professor takes twice as long to explain stuff like this, but I leave not understanding a single thing that just happened... I literally watched this ONE time and understand it perfectly...

    • @bashking7785
      @bashking7785 5 років тому +8

      can you please what you are studying in college

    • @greyeyedone_2119
      @greyeyedone_2119 5 років тому +17

      I feel the same way..... it just seems they make it harder than what it needs to be....

    • @nnekababy
      @nnekababy 5 років тому

      #facts

    • @joeyGalileoHotto
      @joeyGalileoHotto 4 роки тому +30

      Because the "professors" only care about research. Also, they make it hard on purpose because there aren't enough faculty for the amount of students wanting to study STEM at the upper division level.

    • @Trynnagetmydegree__
      @Trynnagetmydegree__ 2 роки тому

      Mann felt dude, felt

  • @salemgomez953
    @salemgomez953 5 років тому +513

    Thanks you helped in calc 1,2,3 , precalc , chemistry and physics.. I feel like I owe you half my salary when I graduate

    • @owenrthornton
      @owenrthornton 11 місяців тому +3

      Bassislly. Yes

    • @highestpeeqs9532
      @highestpeeqs9532 5 місяців тому +1

      Jesus loves yall and died for us! Jesus calls for all of us to repent!

    • @iWxfflez
      @iWxfflez 3 місяці тому

      @@highestpeeqs9532jesus ate my ass be quiet

  • @SKgyebaek
    @SKgyebaek 5 років тому +964

    I pay all those college fees to teach myself over the internet smdh

  • @spongbob496
    @spongbob496 4 роки тому +2052

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    • @Tuta123s
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      @Leafeon-gd5en 4 роки тому +9

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    • @tatiana1310
      @tatiana1310 4 роки тому +22

      I know! It's strange, but it's like you get used to it and then these type of things just happen.

  • @laurenmast6720
    @laurenmast6720 5 років тому +136

    holy shit when all the O2's ended up cancelling at the end with all those fractions my mind was blown man

    • @slopcrusher3482
      @slopcrusher3482 2 роки тому +8

      It's fun when you're thinking " oh god, I hope this all works" When you're going through Hess's law, and then somehow it all cancels out correctly, even though you were certain you did something wrong.

    • @highestpeeqs9532
      @highestpeeqs9532 5 місяців тому

      Jesus loves yall and died for us! Jesus calls for all of us to repent!

    • @thisrandomdude_
      @thisrandomdude_ 3 місяці тому

      @@highestpeeqs9532 Jesus wouldn't have liked for you to be so insufferable
      you're not spreading the good word, you're just making it look bad.

  • @selenamonique8802
    @selenamonique8802 5 років тому +214

    HOW WAS I SO CONFUSED IN CLASS AND YOU JUST MADE IT SO EASY
    MINDBLOWN

    • @highestpeeqs9532
      @highestpeeqs9532 5 місяців тому +1

      Jesus loves yall and died for us! Jesus calls for all of us to repent!

  • @chandlerkeaton1337
    @chandlerkeaton1337 3 роки тому +49

    I love this guy so much. I watched 10 minutes of my chemistry lecture and learned half of what I learned in 2 minutes of watching organic chemistry tutor

    • @highestpeeqs9532
      @highestpeeqs9532 5 місяців тому

      Jesus loves yall and died for us! Jesus calls for all of us to repent!

  • @POLEJUMPER97
    @POLEJUMPER97 Рік тому +114

    12:53 for anyone that is confused when he started to cancel out the equations, he was supposed to write NO2 rather than 02 in the final reaction, as you can see he circled it but i think mistakenly wrote 02 instead

    • @capti_edits951
      @capti_edits951 Рік тому +15

      due to the limitation of the human intellect a miscalculation could be recorded.

    • @pinarokur7100
      @pinarokur7100 Рік тому +14

      thank youu, i literally just came to the comments to see if anyone else had noticed or if i was wrong

    • @aphelmusonda5253
      @aphelmusonda5253 Рік тому +5

      You're genius too for noticing, I struggled a bit until I saw your comment, I rate you as JG number 2🤗

    • @highestpeeqs9532
      @highestpeeqs9532 5 місяців тому +3

      Jesus loves yall and died for us! Jesus calls for all of us to repent!

  • @reyarjune7758
    @reyarjune7758 5 років тому +31

    I just wanna say thank you for your explanation and worked examples. You explain it so clear and understandable.

  • @roxy2397
    @roxy2397 3 роки тому +8

    i watch all other chem videos at 1.5x but i slow them down for this guy in order to savor my time with him

  • @everybodys_mr._bad_guy
    @everybodys_mr._bad_guy 8 місяців тому +4

    i have been studying for an upcoming thermodynamics exam and was very stumped when it came to hess's law. my professor is amazing but i am autistic and sometimes i need things explained to me in a very particular way that many do not have time for(no skipped steps, nothing vague or else i get stuck on how to approach problems rather than solve them) and this video remedied the issue. i am so glad i was recommended this channel. i have an affinity for math and science so i will definitely be sticking around.

  • @puterimalaysia9
    @puterimalaysia9 6 років тому +354

    Who else is here a night bfr exam? Ggwp dearself 🙃

  • @shawns1793
    @shawns1793 Рік тому +14

    in 14 minutes, you gave me a better understanding than 1 week of this in class. thank you

  • @sophiakopec1760
    @sophiakopec1760 3 роки тому +13

    Thanks so much man. You're the reason why I am passing chemistry.

  • @KKTHXFPV
    @KKTHXFPV Рік тому +4

    🙏appreciate your work, my son in hs is having problems on this so hes been avoiding completing his work, we watched this together, first view thru these examples and stuffs already starting to click, hes working on his equations now

  • @alisher9690
    @alisher9690 3 роки тому +2

    well I had a lot of queries about this but now I understand this topic very well... Thanks man 😊

  • @marillacabrigas5058
    @marillacabrigas5058 2 роки тому +2

    OH MY GOSH I ACTUALLY UNDERSTAND THIS SO WELL NOW!! thank you so much, I owe my life to you now

  • @brunafarias789
    @brunafarias789 5 років тому +12

    Thanks for taking the time to make the video. It really helped me a lot. Wish my professor would also watch your videos... Just so she could find a better way to explain things =P

  • @hundred1956
    @hundred1956 Рік тому +6

    Thank you for this! I wasn’t paying enough attention in class (not going to blame it on the teacher) and I have a test tomorrow, now I understand it

  • @gulseren9882
    @gulseren9882 Рік тому +3

    U saved my whole life with this video, I was so confused and in panic after the college at school.. But after this video I am so relieved. Thank u so much.

  • @SophiaKarpouzas
    @SophiaKarpouzas Рік тому +5

    Thank you so much! This was incredibly helpful:)

  • @jmr0411
    @jmr0411 3 роки тому +32

    When you have a quiz in 10 minutes so you watch on 2x speed but get an ad anyway

    • @Bia-starlight
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    • @highestpeeqs9532
      @highestpeeqs9532 5 місяців тому +2

      Jesus loves yall and died for us! Jesus calls for all of us to repent!

    • @Adam-br9pz
      @Adam-br9pz 2 місяці тому

      @@user-eg7do5pp7u whys that

  • @tunmiseakinyemi1762
    @tunmiseakinyemi1762 5 років тому +5

    This is so helpful, thanks!

  • @ruthvikgarlapati5553
    @ruthvikgarlapati5553 Рік тому +1

    You explain things much better and clearer than my teacher. Thank you so much!

  • @queenofnynails2161
    @queenofnynails2161 4 роки тому +2

    Sooo i just had this class topic today and my professor barely went in depth i have learned more with you in these few minutes

  • @lordsniivy5452
    @lordsniivy5452 Рік тому +2

    my chem professor gave me one example of this in our notes, and explained it so poorly that I just thought maybe I was stupid for not understanding. Learning literally three hours before my exam it's incredibly simple. tsym

  • @rickastley7898
    @rickastley7898 2 роки тому +1

    3rd year of highschool, and he's still teaching me more than my teachers.. i will remember this mans when I graduate

  • @MaiLouvre
    @MaiLouvre Рік тому +2

    Thank you for teaching this. I now understand the way to do it.

  • @jeonmochi9974
    @jeonmochi9974 Рік тому

    Thank you so much sir.. I thought this way of solving was hard but i could understand clearly when you keep explaining step by step. Thanks alot again.

  • @user-dt6lu7zo8p
    @user-dt6lu7zo8p Рік тому +4

    Without being rude to my tutor he is dog doo doo compared to you. Has took me a week of scratching my head, reading books and watching videos to understand this, finally I get it. God bless you.

  • @georgesadler7830
    @georgesadler7830 7 місяців тому +1

    Professor Organic Chemistry Tutor, thank you for a solid analysis of Hess Law and Enthalpy Change in General/Old Fashion Chemistry. I found this video somewhat confusing, however, I will review this material from start to finish. Professor Organic Chemistry Tutor, thanks to the viewers for finding and correcting the error(s) in this video.

  • @ayubhaji2441
    @ayubhaji2441 3 роки тому +1

    Thank so much, you explain this better than my teacher did.

  • @warrenlucban1866
    @warrenlucban1866 3 роки тому +2

    I am so very thankful for this material Sir💖

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    @DrSomeDay 4 роки тому +18

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      @susa9786 2 роки тому

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    • @aandjay
      @aandjay 2 роки тому +2

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    @micahkim2227 5 місяців тому

    This guy is actually the goat my chem exam is tomorrow and bro just helped me learn this in 10min

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    @carson6290 2 роки тому +6

    Wow, thank you, God Bless. I was so confused in class and you helped me in 5 minutes and 26 seconds.

  • @AlyssaPaige16
    @AlyssaPaige16 Рік тому +4

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    @chisomemmanuel6160 Рік тому

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    @dusalenrexl.7997 5 років тому +1

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  • @user-bh9zu5tl5h
    @user-bh9zu5tl5h 5 років тому +3

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  • @awnishtiwari949
    @awnishtiwari949 Рік тому +2

    Made this topic much easier 👏

  • @iRekishi
    @iRekishi Рік тому

    Thank you my guy, so much love and appreciation to you

  • @tetsurolifts
    @tetsurolifts 3 місяці тому

    watch these videos in the dark before you sleep and you will absorb the content more easily. my sight looked like a black chalkboard as i was holding my phone watching it full screen. had my full attention to it.

  • @ugwuokechinedu8393
    @ugwuokechinedu8393 7 днів тому

    Thank you so much and God bless you I now understand what is going on in Hess law .

  • @solesidivine9241
    @solesidivine9241 Рік тому

    Thanks so much
    You've been our personal tutor

  • @DuyNguyen-ks8dc
    @DuyNguyen-ks8dc Рік тому

    thanks a lot for the lesson! i understand this a lot better than when i was in class sleepy and confused XD

  • @kevinball5233
    @kevinball5233 8 місяців тому

    I appreciate you. you're saving my CHEM grade.

  • @mahipatel3707
    @mahipatel3707 3 роки тому

    thank you! so helpful!!

  • @Kier_but_who_cares
    @Kier_but_who_cares 3 місяці тому

    Mann thank you so much for saving my grades on Chemistry and calculus subject 😭. I'm gonna donate here once I graduated

  • @zhenghaoyeoh9459
    @zhenghaoyeoh9459 6 років тому +1

    Can u do a video about pressure?I was confused about that

  • @Noodelousart123
    @Noodelousart123 8 місяців тому

    thank you so much for this video. hess's law is really hard for me

  • @redbrixanimations
    @redbrixanimations 2 місяці тому

    this guy carried me through middle school math, IM1, IM2, IM3, precalculus, calculus, statistics and probability, biology, chemistry, and physics.

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    @nathanielramos2543 3 роки тому +1

    How do you extract the reactions from the product?

  • @Will-Chartrand
    @Will-Chartrand 3 роки тому +10

    why do teachers even bother with online schooling if these videos already exist? This was really helpful, thank you

    • @highestpeeqs9532
      @highestpeeqs9532 5 місяців тому

      Jesus loves yall and died for us! Jesus calls for all of us to repent!

  • @perpetualcooper7368
    @perpetualcooper7368 3 місяці тому

    Thanks so much
    This was really helpful 💕

  • @daliaredha2569
    @daliaredha2569 3 роки тому

    DIDEEEE THANK UUUUU SO MUCH I WAS SO CONFUSED BOUT THIS TOPIC U MDE IT 10000000000TIMES MORE CLEARER

  • @Phantomsnothere
    @Phantomsnothere 4 роки тому +15

    Thx I won’t fail my AP chem test now🙏🏾

    • @highestpeeqs9532
      @highestpeeqs9532 5 місяців тому

      Jesus loves yall and died for us! Jesus calls for all of us to repent!

  • @Emma-wd3nf
    @Emma-wd3nf 2 роки тому +1

    Nicely explained 👍

  • @yennako
    @yennako Рік тому

    thank you so much once again !! i was so confused

  • @foodchaze6606
    @foodchaze6606 2 місяці тому

    thanks for explaining it clearly.. ❤

  • @ComradePuss
    @ComradePuss Рік тому

    I got a quiz in an hour and forgot how to do hess law this is a life saver

  • @piyushbhagwat3119
    @piyushbhagwat3119 3 роки тому

    Thanks bro... It helped a lot

  • @haileyhung2694
    @haileyhung2694 6 місяців тому +1

    thank u so much ❤ really helped me for exams

  • @Darkness_empire322
    @Darkness_empire322 3 місяці тому +1

    thnx man i really needed this

  • @aphelmusonda5253
    @aphelmusonda5253 Місяць тому

    From the bottom of my heart, sir I say thank you ❤

  • @raven-nova275
    @raven-nova275 Місяць тому

    Honestly, my teacher went through this like 20 times in class and I never got it, but after 20 minutes I can understand it completely.

  • @hodarfour
    @hodarfour 9 місяців тому

    The best tutor on UA-cam

  • @b15-oliverajudefrancisv.17
    @b15-oliverajudefrancisv.17 2 роки тому +1

    Hi. Can I ask? Where did you get the delta H? I don't understand. You just give the number KJ but you didn't tell where did you get it. I hope you help me answer my question. Thank you😊

  • @DarrellFreeTalks
    @DarrellFreeTalks 3 роки тому +4

    I studied this throughout the semester and am still baffled, but I guess I wasted a couple of months since I can understand it by watching this 14-minute video.

    • @Bia-starlight
      @Bia-starlight 3 роки тому +1

      same. We really should take advantage of the Internet when it comes to learning.

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    @bezaleel3750 Рік тому

    I rarely comment but... you're the real deal bro 💯 👌

  • @bm-jp4ih
    @bm-jp4ih 4 дні тому

    Finally, relief! Thank you...!

  • @paramidhananjani1450
    @paramidhananjani1450 3 роки тому

    did all alone and so happy and thank u jg

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    @yoshiii1439 Рік тому

    YOU ARE THE BEST THANK YOU, LIVE SAVER!

  • @almaborneo5393
    @almaborneo5393 3 роки тому

    Where do you look for known delta H values?

  • @hortonfakesatbl
    @hortonfakesatbl Рік тому

    Thanks a lot. This helps me ❤❤❤

  • @CoreyVanOchten
    @CoreyVanOchten Рік тому

    i love you, you just saved me on my exam tomorrow

  • @yung3137
    @yung3137 3 місяці тому

    THANK YOU SO MUCH THIS SAVED ME

  • @nikhileshgurjar2510
    @nikhileshgurjar2510 6 років тому +4

    thank you sir

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    THANK U FOR SAVING ME ONCE AGAIN LABYU

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    @Omar-uk1dq Рік тому

    God bless you,you’re currently saving my life in high school

  • @farhadiaminul8493
    @farhadiaminul8493 4 роки тому +3

    hey, I wanted to ask at 11: 27, do you have to bring the compound to the other side for them to cancel each other? or can it be on the same side?

    • @wearearsenal4989
      @wearearsenal4989 4 роки тому +1

      I'm wondering the same? I thought I was the only one who saw that

    • @michaelaworona4037
      @michaelaworona4037 4 роки тому +5

      yes the compounds must be on opposite sides in order to cancel

  • @abdulqadirmaricar4596
    @abdulqadirmaricar4596 3 роки тому +4

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    • @highestpeeqs9532
      @highestpeeqs9532 5 місяців тому

      Jesus loves yall and died for us! Jesus calls for all of us to repent!

  • @EthanGrigson
    @EthanGrigson 5 місяців тому

    This is so helpful I have a science test next period.

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    @erenyeagar8785 4 роки тому

    Mind =blow wow man u deserve a noble

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    @minjan5611 Рік тому +1

    This is better than my teacher 😮😮😮,on the top of that his voice 🤩😍🤩😍

    • @highestpeeqs9532
      @highestpeeqs9532 5 місяців тому

      Jesus loves yall and died for us! Jesus calls for all of us to repent!

  • @Misa-un3pw
    @Misa-un3pw 3 роки тому +1

    how do you get -92 kj from n2+3h2→2nh3?

  • @abhi_manu_2007
    @abhi_manu_2007 2 роки тому

    You helped me alot sir

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    @raygasmallah7430 3 роки тому

    This dude is goated fr🐐👑

  • @whirlwindeddie2124
    @whirlwindeddie2124 8 місяців тому

    Thanks man, hope this helps me on my AP test tomorrow 😂

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    @saeedep7514 5 років тому

    You make it is for me ,which was burden many times