Final Exams and Video Playlists: www.video-tutor.net/ General Chemistry 1 Review: bit.ly/3DNmZqb PDF Worksheet - 160 Questions: bit.ly/37SVLn6

@me-om1zg

Жыл бұрын

Thanks😊

@-clipz-

Жыл бұрын

Prayers turn to God may everyone everywhere be blessed and healed and protected in Jesus name amen.

Good luck on your test tomorrow

@omranamin2636

5 жыл бұрын

My exam is actually tomorrow

@mikaelaperri929

5 жыл бұрын

how did you know? XD

@nidhishsharma9471

5 жыл бұрын

@Jaiden Boren mine is today and tomorrow

@paumasip8119

5 жыл бұрын

Wtf

@imakecomments

5 жыл бұрын

Nah just confused on a lab report

you've taught me more in a 6 minute video then my chem teacher has this entire year

@lesserafimchangedmylife

5 жыл бұрын

Sairy Ortiz ikr

@ilovebutterflies3415

5 жыл бұрын

Same reason why I’m here

@AyashaWilliams

5 жыл бұрын

Sairy Ortiz Tell me about!

@Lilrony26

5 жыл бұрын

never heard that one before

@Elizabeth-it7if

5 жыл бұрын

Truer words have never been spoken

Thank you so much. I'm currently failing chemistry and have studied for 2-3 hours every night. This subject is super hard for me. I spent 5 hours studying this tonight, watching videos and reading guides and doing problems. Whatever you did differently, it helped. Something in my head clicked and I understand this now! Again, thank you SO much!

@TheOrganicChemistryTutor

7 жыл бұрын

You're welcome

@jessedavis2563

5 жыл бұрын

Did you pass?

@screamer5029

5 жыл бұрын

@@earthchan7540???

@jackw.5000

5 жыл бұрын

Jherson Gutierrez Maybe you should stop trying to cause problems and watch the video.... it can help you focus.

@gmoneyman

5 жыл бұрын

Screaming Bullfrogs you know damn well you only studied the day before the test stop lying

How is it that the education system could be so fucked that the majority of a class won't be able to properly grasp a concept through hours of "teaching" yet can develop a perfect understanding from this 6 and a half minute KZread video. Teacher incompetence should really be addressed in some schools...

@markmark5875

5 жыл бұрын

I wasn't at school for 2 days I missed the entire lesson like a dumbass

@lucipo_

5 жыл бұрын

Because schools don't check if the teachers are able to competently teach their students

@Sean_Orsborn

4 жыл бұрын

@@lucipo_ Your ignorance is amusing.

@lucipo_

4 жыл бұрын

@@Sean_Orsborn OK taco bell lover

@Sean_Orsborn

4 жыл бұрын

@@lucipo_ Say it like an insult. I I don't mind.

I’m gonna fail this final exam dawg 😭

@mfalex

2 ай бұрын

Naw me too I’m so cooked ☠️

@h4nood.

2 ай бұрын

i failed 😊.

@sofiajardines5470

2 ай бұрын

Same bro same 😔

@Unkwown4287

Ай бұрын

Real

@sreevas10

Ай бұрын

oop

my method: 1.) balance the reaction 2.) find the ratio (how many moles of this make how many moles of that) 3.) find the mr(s) of the substances you want to work with 4.) just put the mass given into the ratio after converting mass into moles brief version: 57 kg of aluminum oxide gave 17 kg of aluminum via electrolysis: 1.) 2Al²O³ ---> 4Al + 3O2 (balanced equation 2.)2 moles of Al²O³ give 4moles of Al so the ratio is 2:4 or 1:2 3.)Al²O³ Mr = 102 Al Mr = 27 4.) 57kg = 57000g 57000g ÷ 102(Al²O³ Mr) = 500 so 500 moles of Al²O³ were used ratio = 1:2 (1mole of Al²O³ gives 2 moles of Al) so 500moles of Al²O³ gives 1000 moles of Al this mass of Al= 1000 moles × 27(Mr of Al) mass = 27kg actual mass / theoretical mass so: 17kg/27kg ×100% = 62.9 % long explanation: (sorry the numbers appear as powers) 57kg of aluminum oxide gave 17kg of aluminum via electrolysis step1.) balance the reaction 2Al²O³ ---> 4Al + 3O² step2.) find the ratio of the elements we want to work with 2 moles of aluminum oxide make 4 moles of aluminum so the ratio is 2:4 or 1:2 (look before the element/comound in the balanced reaction and use the numbers to figure this out) step3.) find the Mr(s) Al²O³ has an Mr of 102 Al has an Mr of 27 (technically this is aluminums Ar since it is not a compound) step 4.) it says 57 kg of Al²O³ was used in electrolysis so we wanna convert this into moles: 57kg is the same as 57000g so 57000/ 102 (the Mr of Al²O³) gives us 500moles. so we now know that 500 moles of aluminum was used. lets put this into our ratio that we found out in step 2. ratio is 1:2 (for moles of aluminum oxide vs moles of the aluminum produced) now just use this ratio to find how many moles of just aluminum were produced. 1:2 -----------> 500:1000 since the ratio states that 1 mole of aluminum oxide gives 2 moles of aluminum. so 500 moles of aluminum oxide should theoretically give 1000 moles of alumimun. now we now that 57kg of aluminum oxide was used and that this equates to 500 moles of it so now lets just find out how much aluminim was produced in mass convert moles into mass ----> 1000×27(mr of just aluminum) gives 27kg (theoretical mass) we were told that 17kg of aluminum was produced so niw what we do to find %yield is divide 17kg(actual mass given) by 27kg and we turn that into a percent to get the percebt yield which should be 62.9 percent.

@RORO-cu6yy

3 жыл бұрын

Are u kidding me what is this man ???!!! Its a comment not a your chemistry period to explain all this😵😵😵

@huzaim.22

3 жыл бұрын

No wrong af

@natnaelsolomon4227

3 жыл бұрын

What time did u finish writing this all huh

@sebastian7494

3 жыл бұрын

Thank you for the free help!

@blakecos5467

2 жыл бұрын

I use this it’s much simpler one u know it

How come professors cannot explain these concepts this simply?

@SuperEH2393

4 жыл бұрын

Because they understand the material so easily and so they perform shortcuts to look smart meanwhile half of the class is failing due to their pride and arrogance. They need to show full examples of how to do the material but they dont bother and expect you to learn it by your self. Some teachers were never meant to teach and they know it and i cant understand why they are there to begin with in the first place. Not ALL teachers can teach. BUT TOCT is my Hero and i respect his craft it all make so much sense.

@jylee4582

3 жыл бұрын

Lauren bruh im learning this in 9th grade

@sangat4315

3 жыл бұрын

@@jylee4582 same i'm pretty sure it's a requirement to learn this in 9th

@couragecrusader7649

3 жыл бұрын

Yeah I’m starting to want to just do virtual school because teachers at school are so bad at teaching I learn most stuff myself anyway. What’s the point of spending 8 hours if you can learn material better in less that 8 hours online🤷🏿‍♂️

@mooploop3091

2 жыл бұрын

Honestly, youtube has taught me more than school. Im in the 7th grade and i like learning about science for fun but school is just stressful. Thankfully, i have a good teacher this year and last year but my grade four teacher sucked ass. He was to arrogant to actually explain how multiplation worked and was trying to win an imaginary game of who can teach the fastest instead. I wish school focused more on teaching than grades and scores.

i love it when mark wahlberg teaches chemistry

@MrHeart12

6 жыл бұрын

i heard it too but after reading your comment i cant stop laughing during the video for some reason

@graceailey6275

5 жыл бұрын

im not gonna learn anything now because im laughing at this too hard

@ItLeftAMark

5 жыл бұрын

😂😂😂😂😂😂😂😂

@name_1617

3 жыл бұрын

OH MY GOD I HEAR ITTTT

@sebastian7494

3 жыл бұрын

😁😁😁

his voice is such a comfort

I know I'm like 4 years overdue but THANK YOU! Isn't it weird that KZread videos are MUCH better than our actual teachers in school? Like all of the lessons I learned was from KZread😅

@Injeol-ll6lj

Ай бұрын

5 years overdue lmao

You got a nice ass voice. It's comforting before a chem exam.

@paulgoerge5492

4 жыл бұрын

Nou Thao u can flirt later

@abhisamak8789

4 жыл бұрын

its so dead, he doesnt give any expression

@killersloth8779

4 жыл бұрын

I ship you and Tyler. NEVER GIVE UP ON LOVE!!!

@killersloth8779

4 жыл бұрын

Oh wrong channel. I thought I was on a Tyler Dewitt vid lololol I MEANT I ship you and JG.

This dude works wonders. My prof teaches for 3 hours every lecture, and somehow makes the topic more confusing then it needs to be. Thank you for making things clear and organized.

Kinda complicated method... simply put; [[Mol = Mass(g) ÷ Molar Mass]] ∴ 30 / 44 = (30/44) [= Moles of C3H8] 3(30/44) = 90/44 [= Moles of CO2 since there is a 1:3 ratio] 90/44 * 44 = 90g [Theoretical yield since molar mass of CO2 = 44] It was just coincidence that the molar mass of Both C3H8 and CO2 are the same

@buddha120

5 жыл бұрын

UR ACTUALLY THE GOAT WTF

@-i2641

3 жыл бұрын

bruhh i still dont understand a thing i suckkk at chemistry

@gerardohernandez5572

3 жыл бұрын

this is what i do everytime

@Kurthustlet

2 жыл бұрын

That's what I was thinking

@khansaboo2030

2 жыл бұрын

what if the ratio was 4:3 then??

Absolute life saver, my chem lab professor works multiple chapters ahead of lecture and did not want to read more than necessary for my upcoming lab. Thank you! I should ace this quiz now.

Dude, bless your soul. You just saved me from failing an assignment big time

I've watched so many videos on this and yours is the only one that makes sense. Thank you!!

"you know". Nah but out of all honesty you're teaching me better then my chem teacher can/has since the start of the semester

My professor with a PhD in chemistry cannot explain any mathematical processes in laymen's terms. He makes everything SO difficult and hard to understand. Thank you, stranger on the internet, for doing this for all struggling chemistry students.

Thank you so much! I passed and got a perfect score in the computation part in our inorg chem lab (I'm taking pharmacy course). I don't get that topic before but due to watching this for two times, I get it now. KEEP INSPIRING

You explain these concepts so simply and smoothly much better than my current teacher, also your voice is really calming and its making me less anxious for my final, thank you so much!

to all of those wondering. here's a quicker way to do this. Actual Mass of C3H8 / molar mass (relative formula mass) of C3H8 using your answer times that by the Molar ratio difference (Example. H20 and 2H20 = 1:2) then time by that by the molar mass (relative formula mass) by the one you are comparing your molar mass to. as if it had a molar mass of 1. Here's how you do it. 1C3H8 = 30g compared to 3CO2 30 (g)/ 44 (relative mass of C3H8 12x3=36 + 1x8=44)= 0.681 (continuous) molar ratio = 1:3 (1C3H8 3CO2) 0.681 (continuous) x 3 = 2.045 (continuous) time that by the relative mass of the product (in this case 3C02 if it was 1CO2 which coincidently has the same relative mass as 1C3H8) CO2 = 44 (12 + 16x2= 44) 2.045 x 44 =90g 90% theoretical yield. the actual that we got is 70g/70% so its 70/90 (the smaller number is first.) x100% = 77.7% percentage yeild. there you go. hope this helps. (also I am not a teacher, I am a college student who just grasped this.)

@scarlet5621

2 жыл бұрын

Thank you so much!

@blackcat738

2 жыл бұрын

@@scarlet5621 even though its a year later. Your very welcome

Thanks so much man.. you taught me more than my chem teacher did this whole year.. thanks bro keep it up

What would’ve we done without your videos 😭😭😭 thank you so much ❤️❤️❤️

This helped me more than my chem teacher, really good stuff man.

Literally 2 mins into the video and I get it already...Hope you hit 1 million .

You explain it so well and your voice is very pleasent unlike my proffessor :)

Beautifully explained as always! You're the only KZread channel I can understand so clearly.

Thank youuuu Organic Chemistry Tutor!!! I have an exam about this topic in Chemistry and I easily understood everything you're saying 😭 what a lifesaver

Thank you so much, as a maths lover it irritated me that I could not work out complex percentage yield and now, a day before my GCSEs, your video has saved me. Much appreciated.

@Lightningod7

Жыл бұрын

How did it go?? Been 5 fcking years 😂😂

@poeticdesigners2713

2 ай бұрын

@@Lightningod7🤣🤣🤣🤣🤣🤣 got them in a few months bro

This was very helpful! So glad KZread exists, and people like this to makes these vids. Hope everyone understood!

Great video! My lab instructor is a new TA and he just gave us one example and turned us loose on solving a ton of unknowns. No one understood. Unfortunately, having a Dr. teach us in the lecture and his TA do our lab causes a huge disconnect. The TA does things differently than the Dr. who breaks things down in a great way. It is killing my grade! I am struggling to keep an A and that is not me! I have never made below 97% in a college course. Until now, I have pulled the grade up to 93% and that took more work than I am used to. Thanks for the great video, the theoretical yield is pretty simple, only he could make it hard! He NEVER mention the limiting reactant once! Pretty important information!

It's a great explanation but you could get the theoretical yield by just using the molar ratio in grams. 30g of C3H8 and the molar ratio is 1, x grams of CO2 and the molar ratio is 3. Cross multiply and you'll get 90. it's way more simple

Ai...He deserves a noble prize in chemistry man!!!

I'm in college right now and I have a Chem test tomorrow. This whole day I have had people pulling up to me asking me if I made chemistry videos because this guy sounds like me. 😂

@gerardohernandez5572

3 жыл бұрын

i’m a freshman in highschool and i have to learn this not even capping

@gghhghhh9742

3 жыл бұрын

@@gerardohernandez5572 what on earth has you being a freshman got to do with people thinking this guy is the guy making the videos because they have a similar voice

@plutoniumin

2 жыл бұрын

@@gerardohernandez5572 same

Very good video, paced just right for me to understand what's going on and not lose focus, thank you!

Thank you. You have made my chemistry work easier for me. Keep up the good work.

Thanks so much, this finally makes sense to me!

@kadenrodrigues3745

4 жыл бұрын

Aftab shaik how did u do

thank you it was very helpful .....thank you thousand times

Thank you!! Sometimes it just helps hearing it explained just a slightly different way to get the concept. This'll really help with my exam tomorrow!

I’ve never been able to solve a percentage yield question until now. Thank you!

You've been my teacher for my whole chem course lol, my chem teacher can't teach.

Y all these comments are soo old😭

Bruh. Thank you so much, I never understood this concept but after seeing this one video for whatever reason I have a way better understanding.

THIS WAS SO HELPFUL I WAS IN THE MIDDLE OF PANICKING IN CHEM CLASS THANK YOU !!!!!!!!!!

this video saved me lmao. my first AP chem test is tm and this finally made sense to me

Thank you! btw you sound soo much like Mark Wahlberg! lol

That is amazing. Understood a concept I’ve been struggling for weeks on in six minutes. Thank you!!!

this person is carrying so many students on his back right now. THANK YOU!

Good luck on your tests everyone!!!!❤

His voiceeeee 😍😂

@TheOrganicChemistryTutor

7 жыл бұрын

It's something else isn't it?

@1000Bamboo

7 жыл бұрын

The Organic Chemistry Tutor Are u from Nyc?

@lesserafimchangedmylife

5 жыл бұрын

It’s cute

@SkillUpMobileGaming

5 жыл бұрын

His voice gives me anxiety. He sounds like he's either nervous or right about to go into a panic attack.

@abdullahnaseer2533

5 жыл бұрын

Noelly Abreu the breathiingg

Thank you so much, I finally understand how to do this and I have my exam on Wednesday...I can’t believe how simple this actually, why can’t my teacher can’t explain it like this 😪

I'm in seventh grade and you don't know how much this has helped me not fail my finals

@jayjai7256

15 сағат бұрын

why are you taking chem in the 7th grade dawg😭

bro saved my chemistry exam

Don't mind me, just taking notes because I slept in for my Ap Chem class and wasn't able to know what everyone was doing

Thank you Julio, I owe you so much, 3rd year chemical engineering student here.

this saved my life before my chem exam tmr god bless

why is it that you did not get the g of O2?? like you did in C3H8??

@TheOrganicChemistryTutor

8 жыл бұрын

it's the excess reagent. We don't need it to calculate the percent yield. There's plenty of oxygen in the air. I hope that answers your question :)

My test us actually tomorrow

wow you have taught me in 6 mins more than any teacher in history of the whole world

I've deadass learned more from this than my chemistry teacher could teach in the last month

another simpler method guys C3H8:3CO2 44 : 132 30 : x 132×30/44= x 90=x

@Josama0214

Ай бұрын

This is wrong and definitely isn't a simpler method

Mark Wahlberg knows his chemistry.

Love this video! Easy and straight to the point! 👏🏻👏🏻👍🏻

Needed some clarification on this topic for my unit test tomorrow. Thanks once again OCT!

yeah i’m done w chemistry i still don’t know what i’m doing💀🙏

who come here looking for yield calculation in finance? its like you entering a wrong class

oh my god thank u so much I have a lab report due on Monday and I literally don't understand anything especially percentage yield but now I understand a lot better!!!

God bless you, you help me through my suffering in chemistry

Stop flirting with me

mom can we get *khan academy* ? “no we have *khan academy* at home khan academy at home:

Omg thank god for this video I needed so much help with my chem homework and you cleared everything up for me. Thank you so much

Thank you for the step by step. it was so very helpful.

You can do it! FOR WITH GOD NOTHING IS IMPOSSIBLE IN JESUS MIGHTY NAME! May God bless you on your exam!!!!

@mustufidraws1219

Ай бұрын

Thanks bro

I am still so confused :'( Like... I understand percentage yield no problem. It's the calculating of TY I can't grasp. The whole... 30g over 1 and 1 over 44, and 3 over 1.... x g / mol... I'm so so lost. Help! Someone, anyone!

@IdrhysZK

6 жыл бұрын

Simplest way to do it is (Moles = Mass x Mr- then use the stoichiometric equation to find the ratio. Then using the moles from the ratio, and the equation Mass = Mr x Moles, you can find your theoretical yield.

@nitamac1312

5 жыл бұрын

you need to learn dimensional analysis

Thank you so much for this video. The Way you explained really helped me understand. Most teachers just tell you what to do with out telling you why.

@TheOrganicChemistryTutor

6 жыл бұрын

You're welcome

I already watched this video back in highschool on the subject General Chemistry, and I'm back to rewatch it again on our Chemistry for Engineers now in college.

Didn’t get a single damn thing and I’m running out of time

@AKCman35

5 жыл бұрын

Don’t expect to get help with that attitude.

@josh-qj2zu

5 жыл бұрын

@@AKCman35 2 months ago

@seanmcleann

5 жыл бұрын

@@josh-qj2zu im in the same position rn

@sumanthsureshkumar7727

5 жыл бұрын

this video helped me lol now i get the concept

I swear i was looking for the video about percentage yeild and percentage purity i have test tomorrow of chemistry about this very good explanation i understand easier you are better than my teacher

Thank you! Chemistry is super hard when there’s all this maths.

Thank you. To be funny: 0:40 8 hydrogen atoms, eight has five letters, 8-5= 3, 3 sides to a triangle. Illuminati confirmed!

He didn't put the correct molar mass of CO2...... He filled it in with the molar mass of C3H8

@findo9615

6 жыл бұрын

Alright kiddy. Before you go calling out our professor here,,,,,, c = 12 o = 16 h = 1, if we're rounding to whole numbers. (12+32) = (36 + 8)

@Bilbus7

6 жыл бұрын

32+12=44 numb nuts

@21mejia25

6 жыл бұрын

lol

@TimThompson05

6 жыл бұрын

lmao!

@Niggapicen

6 жыл бұрын

Gretchen Sich if you didnt notice, the molar mass of CO2 and C3H8 happen to be the same

Since online school is staring because of this virus I will be utilizing this channel! This was super helpful, thank you so much

Your videos are amazing. Thank you for sharing the wealth!

Appreciate the quick video as review for my AP Chem clsss

thank you. your explanation prepared me for my exam

Thanks dude this was helpful, you teach better than my chem teacher

ugh my professor could never... thank you for this GEM

Thank you so much! I had no idea how to do this, and you made it so simple!

@TheOrganicChemistryTutor

7 жыл бұрын

Thanks

This is amazing, good job and keep it up :D

YOU ARE AN ABSOLUTE LEGEND!

istg this is easy but also so hard at the same time,, it's easily confusing... but your explanation is extremely clear! hopefully i'll be able to actually do my assignments on my own from now on TT

the way u explain it is SO SIMPLE and easy to understand u should be a hs teacher

Makes so much sense now!! Thank you!!!

i will now have an easier time on my exam because of you

How I wish you were my teacher. I don't usually subscribe to educational channels but I did to yours. Big thumbs up 👍👍

This was PERFECT! Thank you!!

Dear KZread, instead of showing me videos from my subscription feed in the videos down below, show more videos related to the subject I am watching.I got a chem test tomorrow and I gotta pass thanks for teaching me this in 6 mins

Thank you so much you helped me understand this concept.

you are really a life saver