Step by Step Stoichiometry Practice Problems | How to Pass Chemistry

Check your understanding and truly master stoichiometry with these practice problems! In this video, we go over how to convert grams of one compound to grams of a completely different compound and learn how to convert grams to molecules. The more you practice the more you succeed in Chemistry!
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who else got an exam tomorrow

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I got one in 8 hours

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bruh, i have one in 3 hours

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Thanks for teaching me in 7 minutes what my teacher tried to teach in 3 weeks

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what my teacher couldn't teach, so the 70% of my group mates failed. Then we got to do a second exam with the same topic, plus the next topic.

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yeah my teacher showed us this on a Tuesday and gave us a test over it on Friday i bombed the hell out of it so now im going back to get better teaching and retalke the test lol

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Russian SleeperAgent I’m in summer school so my teacher literally taught us this today and is expecting us to do good on a test tomorrow. 😩

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Some colleges need to convert less time, into more money. Lol

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for u three weeks for me three months

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You teach better than what my current teacher ever will

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amen

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🙌

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Same

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so true!!!

[@IVNXI]

But you see when the test day comes....I forgot everything 🙃

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Same.My test is tomorrow like i dont wanna fail

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My test is tomorrow... And currently I have a D+...so if I fail my test.. I'll have an F

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Omg i have a test today and this video is SOOOOOOOOOO much better than sitting in a classroom with the teacher not explaining anything. PLEASE become my new chemistry teacher❤❤❤❤ Edit: I failed😭😭😭😭

[@melissamaribel]

😔Oh no! Sorry to hear that Haley. It's never too early to prep for the next test though. Let me know if you need help with anything, it's not over yet 😊

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LMFAO

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When you try to pass a test on one of the most complicated subjects in science by watching a video on test day because you didn't study and you don't succeed...

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Pretty sure I aced my test today and now I’m already starting to study for the next one 💪. I went from failing to being ahead of the game. It’s never too late to correct the curve. Aim at a goal and do everything in your power to hit it. Thanks for the super helpful videos, Melissa!

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i wish you were my chemistry teacher. he thinks it’s a race to teach subjects faster than the other teachers, and we’ve spent a total of 3 days on stoichiometry and there’s a quiz today on it

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Me too mine goes so fast

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I began the semester lost!! My professor has a way of teaching that I didn’t click with though he is awesome and very caring about his students. After each lecture, I came to Melissa’s channel to go over what my professor lectured us on. 4 months later, I received an A- in Che118. If you’re having trouble in your course, I suggest coming on here after each lecture. It will really help. My professor always says ChemIsTry...if you try, you can pass! I got a 100 on my calculations test after watching this video along with her other calculation vids. trust me you can do it!! Thanks for the help, Melissa! (P.S. can you help me with A&P?? lol jk)

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smol bean you’ve got this!! I felt the same way you did at first. Believe and watch her videos! it’ll all begin to make sense!

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with the virus shutting down my school I am forced to take my most hated class in the world online. And I cant even begin to describe the anxiety and stress it had brought me so thank you so much for making these videos they are the most efficient lessons ive ever been apart of the way you combine visual and audio learning is amazing THANK YOUU

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literally taking chemistry online is the absolute worst, I have a DBA on this for FLVS today

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Just cheat, it's online

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Chemistry can be fun. Relax and enjoy it.

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If only you were my chemistry teacher.

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why does this have to be the lesson we have to learn in quarantine, I'm actually suffering

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Agreed, but that’s what I’m here for. To fully understand this concept I recommend this video: kzbin.info/www/bejne/nYa1c2SArLWZgNk

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It's not that bad is it

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she's so much better at teaching chemistry than most professors at university nowadays...

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let me tell you that when I finished watching this video and ACTUALLY understood it ... I cried. Thank you so so much for this video! Bless your entire life and existence!

[@melissamaribel]

Aww Wendy, you are so sweet and you are so welcome! I'm so glad it makes sense now 🎉

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Ok, I’ve come back to this video AGAIN, because chemistry is kicking my butt. This is so frustrating, I seriously just don’t get it. I need someone to explain this to me like I’m a child that doesn’t understand anything. I’m about to give up and just fail chemistry at this point, I’m so over it 🥲 Melissa hand over the chemistry brain, I NEED IT😭🤚

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This video breaks it down some more: kzbin.info/www/bejne/oKOzhIKogLqmbLM

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I had absolutely no idea how to do these problems 5 hours ago and after watching ur playlist i was able to do these problems on my own and use this video to check my answers. I’ve been using your videos to help me throughout this school year and you are probably the best at explaining these things! Thank you for all your help :))

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I got one tommorow 🤦🏽‍♂️🤦🏽‍♂️

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This made me understand it more than what my teacher taught me, like holy this is so much simpler tyvmm like I have a quiz on this tomorrow

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Yay!! Good luck on your quiz tomorrow

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[@melissamaribel]

READ THIS!! I have a new video that explains this in more detail here: kzbin.info/www/bejne/oKOzhIKogLqmbLM Also here is the first question 0:43 broken down into individual parts. So we are going from 48.64g H2O to grams of H2O2 Step 1: Convert gH2O to mol H2O Using the molar mass of H2O as a conversion factor 1mol = 18.02 g 48.64 g H2O x (1 mol H2O/18.02 g H2O) = 2.6992 mol H2O Step 2: Convert mol H2O to mol of H2O2 Using mol to mol ratio from balanced equation 2 mol H2O2=2 mol H2O 2.6992 mol H2O x (2 mol H2O2/2 mol H2O) =2.6992 mol H2O2 Step 3: Convert mol H2O2 to grams of H2O2 Using the molar mass of H2O2 as a conversion factor 1mol = 34.02 g 2.6992 mol H2O2 x (34.02 g H2O2/ mol H2O2) =91.83 g H2O2 If this isn't making sense then I recommend watching the previous videos that explain each conversion factor, once you understand what each conversion factor does then putting them altogether will make sense. Molar Mass kzbin.info/www/bejne/infFeH97j5mkqpI Mole to Mole Ratios kzbin.info/www/bejne/mWrFlouGr69gfNU Avogadro's Number kzbin.info/www/bejne/oHnFoJanbNNke9k

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I have a 7 in Chemistry and watched the vid and still can’t comprehend anything I think I’m beyond help

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Same I have an 11

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I got a test for this in 5 minutes trying to Cram in this Video because i literally don't know how to do it

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thank you so much mam. I never understood this stoichiometry, but now I understood very well 😘😊

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Great Gatsby! I have an exam tomorrow and this was my weakest subject because I keep having trouble visualizing where to put what. Using this table completely turned around my understanding. Thank you SO MUCH!! I actually might pass this exam because of this video.

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You are AMAZING!!! Thank you so much for making this easy to understand after HOURS of looking at my book, working through problems on Cengage, looking at my professor's slideshows... Because of you I might pass my test!

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Yay!! Hope your test goes well Rachel 💕

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great video! really understood the concept of stoichiometry in these 8 minutes than sitting in my lecture. Thank you for the help

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You're very welcome!

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You are a lifesaver! I can say that I passed my Chemistry placement test for college because of your videos. I hadn’t learned anything during my regular chem class. No remedial chem courses👏🏻😊. Thank you!!!!!

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Getting there but my brain is still discombobulated 😕

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[@melissamaribel]

You're very welcome!

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Wow, I didn't understand chemistry from the first place I learned it, but as I started watching your videos, I then began to understand and love it. Well, you're a very good teacher who teaches very well. 😊 I love you, Melissa. I thank you.

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Thank you so much Sharon 💕

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Thank you soooo much I have been struggling with stoichiometry and this really helped me get a better understanding

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I now know no one can teach me this lesson.

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I have a chemistry final tomorrow, please wish me luck! 😭

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good luck just a little late

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Your videos are a blessing to all chem students !

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I just wanna say quick my teacher has been teaching this unit for 2 months and I never understood it until watching this amazing video…the night before the final exam….so thank you so much

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Melissa Maribel thank you

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Who else is sitting here watching this during your test🏃‍♀️

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You are GOD SEND! THANK YOU FOR MAKING IT SOOO EASY TO UNDERSTAND!

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Thanks you gave me the basic understanding 👌🏾because I was struggling with it at first but now I am understanding it .

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Bruh I’m soo glad I’m learning this because imma totally need this in life 🤦‍♂️

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Correct, you are currently living life at this very moment and you are using it 😂

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bro how'd you get the 91.83????

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This one video has taught me stoichiometry better than a week of class time. Thank you so much!!!

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where tf did you get 34. 02

[@isaiahvaleroso3389]

It’s the molar mass of H2O2

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I get it better than when my teacher is teaching me.

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You explain it way better than my teacher does. I am sooooooo grateful for this video. Thank you so so so much!!! 😁

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OMG THANK YOU SO MUCH, ive been struggling so much in this topic of chem. and your video helped alot

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who else is preparing for stoichiometry and accidentally watches this video first..

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I don't understand it

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Nice 👍

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Nice pfp that is

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@@1clay101 Thanks its a Carakiller from The Future Is Wild

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I wasnt so sure about the mole to mole ratio thing and you made it clear THANK YOU

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Lord!!! I love so much Melissa. u make chem seem so easy. thank you so much

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I don't understand at all

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same

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Ms. Melissa Maribel . thank you so much for your valuable time and making these videos

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OMG THANK YOU SO MUCH, I FELT SO BEHIND MY CLASS AND WE HAVE A TEST IN AN HOUR, UR A LIFESAVER

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ive been studying about this from different sources but i never got to fully understand the topic.. this video was so easy to understand?? thank u so much

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Thank you so much for making this video! I sort of didn’t get it at first but now I got it.

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I love your organized visual aids helped me so much in theses five minutes thank you♥️

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i just started stoichiometry and i found your channel. THANK YOU SO MUCH!

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you are wonderful explaining and is a pleasure to learn from you :) love the colors and the whole set up!

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Thank you sooo much for stoichiometry videos. I finally understand it. Once you get it, it becomes fun knowing that your answer matches the correct answers. Thank you once again 😘

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Thank you so much 🙏 you're a lifesaver! I have a test and now I can understand it

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I LOVE YOUU MELISSAAA YOU HELP ME A LOT! ❤ THANKYOU SO MUCH! ㅠㅠ

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thank you Melissa you have helped me a lot with my studies.

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Thank you very much for making this video. I am in accelerated chemistry and I am struggling to keep up and this video really helps

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hi, these videos help me so much!! i was about to ask a question but then i figured out the answer while retyping it, so that's good . you explaining this in 7 minutes taught me more than my teacher in over 2 weeks. thank you!!!!!

[@melissamaribel]

You're so welcome! 💕

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You are the only thing getting me through chemistry during the coronavirus. Thank you so much!!!!

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Melissa... Congrats on getting selected with Tim.... I will be watching you to see how you ROCK IT... best of Luck.

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Thank you so much! Very straightforward and easy, i get it now.

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Hi Professor Melissa, thank you so much for your all videos that you explained clearly that helps me a lot in my chemistry class. Without your videos, I wouldn’t be able to understand and solving chemistry problems, again thanks a lot!❤️❤️

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This video really helped thank you! Wish me luck on the test

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you are amazing!! Thank ya!! You saved my life!

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Legit explained something better than my chemistry teacher "tried" to do in 5 minutes

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to be honest you deserve the best teacher award , i ve been struggling in class but by watching, now i get everything right thank you

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Thank you! This really helped me!!!

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I LOVE YOU. YOU ARE HELPING ME PASS MY FINAL!!!!!!! THANK GOD FOR YOU

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Thank you for the awesome video Marissa. I practically beg my students to please watch your tutorials. We are doing this one together as a class.

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Finally, I Got It! Thanks very much!

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you are an excellent teacher! Thank you!

[@jay_07zz45]

My teacher took 3x longer to teach this, and her version had way more steps and was much more complicated, you did this in about 5 minutes, thank you!!

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This video was uploaded on my birthday...could've been the best birthday present ever if i had chemistry first semester

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I love the way you teach!!!!! You saved my ass this time💞💞💞 THANK U!!!

[@melissamaribel]

Yay!! So glad you like my teaching style 😊 You are so welcome 💕

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You helped me soooo much. Thank you!

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THANKYOU SO MUCH

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Helpful thanks have a test on Tuesday!