Enthalpy Stoichiometry Part 1: Finding Heat and Mass

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We'll go over the main conversion factors you need for enthalpy stoichiometry, after this, you will find thermochemical equations a lot simpler! Plus I'll go over major keywords like heat absorbed or heat released and how they affect our enthalpy change.
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6 окт 2024

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Комментарии : 65

@Jennifer-xo2ow 5 лет назад

I just want to thank you Melissa. I'm a returning adult student and never taken any chemistry. Our professor just talks on an advanced level he doesn't understand that we need it broken down on a simpler level. You are gifted, thank you for getting me through chemistry. If there are a recent spikes in subscribing to your channel it's cause I'm telling everyone in class how amazing your videos are 😜

@melissamaribel 5 лет назад

Thank you so much Jennifer! I really appreciate your support 💕

@cowslane1 3 года назад

Haha I told my class too! My professor was really receptive to it and asked me to write Melissa's name in the chat for everyone. (Virtual class)

@billyhighfill 5 лет назад

I'm literally passing my chem class because of yours and tyler DeWitts videos!! Thank you!!

@BWEnaj 6 лет назад

Perfect right in sync with my CHEM class!!! Thanks!

@melissamaribel 6 лет назад

Yay!! I love perfect timing 😊

@ramellak8733 3 года назад

Your videos got me through chem last year with an overall average of 100%! Your method of teaching is incredible, please never stop making videos! Let's see what I finish with this year :) lol

@levihammer9285 5 лет назад

This woman is on track to make lots of money. Very well made videos and notes. You will definitely see a return on your investment Melissa. Most likely when you get more subscribers you will see more people purchasing your products online. Good luck and thanks for the time and effort.

@melissamaribel 5 лет назад

I'm on track to help a lot of students, that's the goal 👍

@the_beast_vids 4 года назад

Thank you so much for these videos. I cannot express how lost I would be without these, my chemistry teacher is no help compared to this, thank you

@melissamaribel 4 года назад

Aww you are so welcome Nathan!

@hartleyheiss5078 2 года назад

Thank you from the depths of my soul, you are truly amazing please never stop making these videos you really are saving me !!!!!!!

@thierrytrevorbusinge8186 3 года назад

I thank God for finding this video because I was about to give up after a 2hour lesson. And love your background by the way, helps in concentration

@AtulKaushik-zj4rc 3 месяца назад

Thanks, used this before a final exam to review, very well explained 🙏

@klar1709 10 месяцев назад

Just bought the thermochemistry book of yours. I must say it helped me so much!! Thank you from the bottom of my heart. You have made chemistry a lot easier to understand

@melissamaribel 10 месяцев назад

You are so welcome!!

@parkermccarroll6939 3 года назад

Thanks for EVERYTHING you're doing Melissa! I just bought your BUNDLED notes!

@kathrynagnew7277 4 года назад

thankful for this! you are a gifted teacher

@mozacrabs4175 2 года назад

it was really helpful also i wanna told you that you help people from another continent Greetings from Egypt ty

@isaiahhealey6323 11 месяцев назад

u are saving lives.

@isabellarodriguez9182 4 года назад

I just want to thank you sooooo much. I have a thermochem test tomorrow, and I had no idea how to do the stoichiometry for the Delta H! Your video literally saved my life! (and hopefully my grade lmao)

@rayamoooooo685 5 лет назад

Awesome, you are totally the next generation of Legally Brunette 💙.

@AUwalaSahaj 4 года назад

Love your method of teaching. Please make video on organic chemistry also.

@angeladry3187 28 дней назад

Thanks! This was easy to understand and learn :)

@lmiller7610 3 года назад

You're a life saver, thankk you so much

@laysfreshchips7722 6 лет назад

Thank you I was just watching all your stoich videos!!

@melissamaribel 6 лет назад

You are so welcome! Happy you like all the stoich videos 😊

@MrOoglebog 4 года назад

I very much appreciate your teaching

@aviaparker2018 3 года назад

Life saver thank you so much 😊

@Emysswedmovies 4 года назад

can i say that i love you? You compared to other youtubers explains like i was in kindergarden, which is what you sometimes need when the basics are not clear :)

@cgl25 3 года назад

Thanks, Melissa!

@hmaei 5 лет назад

wow for the effort!! i luuuuv this thank u

@melissamaribel 5 лет назад

Thank you so much Hanna 💕

@sayunidin6640 4 года назад

Wow ...this video was really helpfull thankyou so much ❤

@bugab0076 3 года назад

Hi question, just wondering how you figured out where to but the mols when dividing everything. I understand everything else, it just that bit is stumping me. Thank you so much :D

@curtpiazza1688 2 года назад

Excellent!

@cavietapersaud-ramkishore2666 3 года назад

i love your videos Maribel

@MohammadGholaminjd 3 года назад

Hello Melissa. I’m a candidate for the IMAT exam and I really enjoy and learn so much from your videos. How can I have all the courses and papers and notes ?

@vanessawhalen7055 2 года назад

What about when you are not given an enthalpy and are only given the temperature change and the mass of water?

@JessicaAbe 3 года назад

what about when theres an excess?? For example my question is "Calculate how much energy is changed when 16 g of O2(g) reacts with excess ClF3(g)". How do I work in the excess amount? plz answer

@hopemusunsa3804 2 года назад

Melissa Maribel is a big blessing, beautiful face and heart. God bless you richly Melissa

@billyhighfill 5 лет назад

Thank you!!!!!

@ManuelLopez-so4ys Год назад

Love you so much

@hiwakarem7640 4 года назад

thanks for u ❤

@JP-flower 3 года назад

MELISSA IM GONNA LEARN A NEW INSTRUMENT AND THEN WRITE YOU A SONG WITH ALL THE TIME I AM SAVING WATCHING YOUR VIDEOS

@MohammadGholaminjd 3 года назад

Awesome 😎

@shpendaziri5117 4 года назад

Damn! You deserve wayyyyy more views.

@melissamaribel 4 года назад

Thank you!

@nickfury5587 4 года назад

My apologies your video was at 420 likes but it was so helpful I had to leave another. Thank you

@brennascott980 2 года назад

You are an Angel sent from God my love

@luisdepaz7390 4 года назад

Thanks for the help! this video actually helped with some of the problems. However, I still can't figure out which conversion factor to use if the given information is volume of methane gas at a certain preassure in Torr and a certain temperature in degrees celcius.

@SelenaSanchezGiancola 6 лет назад

i love youuuuu

@melissamaribel 6 лет назад

💕Happy to help!

@janna2021 4 года назад

is the answer for the last example letter b, 1340.35 kJ?

@blessingosarodion5167 3 года назад

Hi, why didn't you change the -1204kj into positive when it was above the 2 moles. I only ask this because I've seen other chemistry videos and they reverse the sign in the stoichiometry process

@smalliver365 2 года назад

you so underrated

@Mehoymenoy9877 4 года назад

why can’t my chemistry teacher make it make sense like this

@starGirl-dl1rx Месяц назад

Tbh, i could not understand a thing in the calculation [ sorry in advance, if that sounded rude] is it me, or do you assume we know everything and you start us off with that ?

@tiers8077 5 лет назад

When multiplying to get both the magnesium and the oxygen to balance out, wouldn't the oxygen change to 4 when you times it by 2?

@melissamaribel 5 лет назад

Hey Shuat, so we never multiply the subscripts and the coefficient for balancing. The magnesium is the only one that has that 2 in front. I recommend reviewing some more balancing equations, I recommend these videos: Video 1: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-jy6F0Lbvjm8.html Video 2: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-P0BSTjziVys.html

@hamdiabdi3523 4 года назад

How many kilojoules are given off when 17.8 mol of CH4(g) react? CH4(g) + 2O2(g) → CO2(g) + 2H2O(ℓ) ΔH = −890.1 kJ please this solve because I don't understand help me