STOICHIOMETRY - Solving Limiting Reactant Problems in Stoichiometry...Easy
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- เผยแพร่เมื่อ 23 ส.ค. 2024
- STOICHIOMETRY - Solving Limiting Reactant Problems in Stoichiometry...EasyThis is an awesome video to learn how to solve limiting reactant stoichiometry problems. In this video, I show one example of how to solve a Limiting Reactant stoichiometry problem. It's also cool to solve for for the amount of excess reactant and I'll walk you through that too. Enjoy.
Thank you............. by your explanation i got the concept of limiting reagent n how to solve it thank you very much
this helped a lot hope i have an A on the test i have i really didnt understand any of these
thanks that really helped me understand today and I have a big quiz thanks bud
i had a test on this yesterday... saw this video 5 minutes before taking it and i aced it :D
thanks a lot!!!!
thank u very much am soo glad i understand
Good Question. You can use either one of the products, but it's easier to calculate the atomic mass of hydrogen :)
got the test today....feel a lot better
this video really helped
Thank you so much! My teacher this year had a hard time explaining this to the rest of the class, so I will definitely recommend this to them!!
Elise McAuliffe Thar is cool to hear! Keep on learning!
For the second reactant, I do believe you meant to put Hz instead of Hf, ( In the mole ratio) as Hf has the 2 coefficients and Hz has one. Please correct me if I am wrong. Love you videos.
Thanks
You are welcome!
Thank you so much! I was having a lot of trouble with this before but your video helped me a lot and it was very simple, thorough, and easy to understand!
Kru V It's not a surprise that you were having trouble, it is a very difficult concept to grasp. Thanks for tuning in and best wishes in leaning chem!
Hey Mercy, it's really not so bad!
You are amazing
This video helped me more than my teacher ever did. Thanks!!
Matt, glad to save your life, it's always a good feeling. Stoichiometry is not that difficult, perhaps just difficult to explain. Best wishes on your test, be a beast. Peace.
You helped me so much. You teach fifty times better than my teacher
You are totally welcome! I'm of you for not quitting, but rather checking out youtube for videos to help you. Keep tuning in for more videos when you need help. I'm glad my teaching style helps you learn. Keep me posted on your success!
This was amazing. I need so much help in chemistry and this videos help out a ton. My teacher tries but most of us just don't get it so she directed us to you. Thanks so much and keep making these for us please! It also helped me get an A in chem
TYSM!!! Helps a lot now I understand the concept of this.
Awesome job on the A! Congrats on your hard work. I may have explained it, but you took the time to learn it. Peace.
Thank us so much I have I always wanted to clear my doubt
Thanks a bunch! I am currently going over MCAT Gen. Chem. material. This video was a great way to brush up on those stoichiometry problems. The best to you :)
Sigama Bond So cool to hear and best wishes on that big test. Thanks for the feedback.
@sciencepost THANK YOU THANK YOU THANK YOU.
MISTAKE AT 5:18 ; Its 1 mol of H2 over 2 Moles of HF. Great video though :]
Good eye! I also saw that and was confused till I saw your comment, thanks!!
Tristan Mallory It confused me a bit. He must have missed to correct that. Thanks!
thank you so much for making this video, it really helped me understand this better. I realized that this isn't as hard as i thought. my teacher just gave me a handout and never really went over it. Im glad i found this video and am confident to pass this test FINALLY with my first A on a test!!!!!!
Sharon, thanks for the huge compliment. I'm excited that the videos are helping. Keep up the studies and you'll do awesome.
thank you!!! i am a college student and ive been dreading taking chemistry again just because of math, but thanks to you i understand now. now i can recommend you to my classmates. thanks a bunch
i have a test tomorrow and have been struggling with limiting reactants.... this helped me a lot! Thanks :D
So cool to hear! Go big!
That is also your theoretical yield. Once you find out your actual yield after the experiment, you will be able to calculate the overall percentage of your yield.
I'm not sure if I'm right, but I think it was supposed to be 2 moles of HF for every 1 mol of H2 and not 1 mol of HF. :3
THANK YOU, thank you, THANK YOU! I appreciate the time you put into making this video... it helped me a lot!
You have saved my chemistry grade. Thank you!!!!
This video helped me a lot thank you
Very helpful! Thank you
Thank you!! I hope I'll pass the exams tomorrow. godbless :)
Now, I'm confident that I will get A+++ to my report. Thank you!!!
Thanks for the compliment! You are probably right about the mistake, and if so, you have some good eyes for catching it! If I make a mistake, I often just roll with it, too much work to edit it out. Thanks for tuning in.
Why did you use the H2 and not the other one on the reactant side? Does it matter?
this helped me understand abt limiting reactants... thanks a lot
Let me know what you get on the report, I hope A+++
Wow! That is ridiculous! I'm excited it clicked for you, even minutes before a test. Great job listening and learning. #sweet
I still dont understand how you got the answer. What did you have to multiply or divide exactly to get the answers, once you already cancelled out the other things?
this helped so much! thanks!!!!
Maria Cabrera Stoichiometry isn't easy. So glad it was helpful! Check out my other stoich videos. th-cam.com/play/PLNc_BreVXbmoiQaQnunBX5CvZL7-aM1XQ.html
For some reason Audio sound is little low. All my mics are turned up...
Thank you it's 2 am and I can finally go to bed. thank you
Thank you! Was very helpful:)
THIS HELPED SO MUCH!! Thank you! But I have a 1 question... What did you multiply to get 2.42 g????
I know this is a step further, but then that means the excess solution would be 115 grams of HF, right?
thanks but for the second equation you set up shouldn't it be 1 mole of h2 over 2 moles of hf?
I don't understand the way you do the calculations, can you tell us what you actually type in to the calculator? I can't understand how the result for H2 ended up at 2.42 g.
you just saved a mans life
I used ZnF2 as a product instead of H2 just to experiment. My results were 125g and 840g. Are these correct?
I love that you tried that! I am not by a calculator now, so I can not confirm it, but if you got H2 correct, then I would guess these are correct too.
That's great news!
John, the coefficients were discussed at 3:40 and 5:00. I use the term "mole ratio" but it nothing more than the ratio of coefficients. Thank you for you question bro. Best wishes bro.
im so confizzled. where did you get 79.1 from? and the 65.4?
why are you using the hydrogen and not the ZnF?
because of you sir, I graduated harvard, thank you
I meant to say H2
he just multiplied and divided across the equation. Ergo:
79.1 divided by 65.4 times 2 equals 2.42 grams of hydrogen
All you need to do is realize that twice the amount of HF is required to react with a particular amount of zinc. if there is more more than twice the amount of HF over Zinc (which there is) it is excess thus Zn is limiting!!! That's it.
Canada2760 LOL. It's a 2 to 1 ratio based on moles, not mass. So the first step is totally needed. Ultimately, my students also need to quantify the mass of the product theoretically so that they can calculate percent yield in the lab. So, it's not as simple as you may think. But hey, thanks for the positive feedback. Best wishes with stoichiometry.
sciencepost I understand where you're coming from but the question simply asks to find limiting reactant which we both did but I did it with far greater simplicity. just finished these types of problems in 11 U chemistry. While I'm on the subject, I'm wondering if organic chemistry is hard or complex? Doing that next year in grade 12 chem.
Canada2760 I'm stoked that you are doing Organic and wish i had some vids for you. Yes, its challenging, but that should just require some extra prep. Best wishes and keep being creative with your problem solving.
Why did the 79 become 65.4?
so 2.42gHF is the final answer right
"Moluture strurture of table is unstable you guess at you stole atom dase element for creation why? Let the element show you>
Hey Elias, please let me know how the test goes. I'm hoping you go big!
im now even more confizzled
"You can't take guess at these thing when know you have mortal sin why it not pure for purpose iyou have no power in word it has to be clean up genius">
Awesomeness, now go pass that test!
Hey Elias, thanks dude for the compliment. Please the the vid if you think it could help others. Check back, I've got lots more chem vids. Peace.
Why does it say 1 mol of HF when in the equation there are 2 and same for H2?
+Ty Hanrahan I saw that to. but sometimes the teacher is also wrong
I love you
Ap Chem Bois
sean??
Wow, this is Ap chem for some people? This is just CP for me and it's torture.
t-h-x