Stoichiometry - Chemistry for Massive Creatures: Crash Course Chemistry #6 

This episode is very helpful. Sounds great that you are still focusing on it even 7 years later.

k

Absolutely love this channel and would never have dreamed of learning what it offers. Without being nitpicky just want to point out 8 mins deep in the episode its doing the math for the mass of sucrose and the oxygen mass is wrong 11mol x 16.00g/mol is actually 176g not 171g potentially putting the sucrose mass out. It may bug you it may not just pointing it out.

Is linear algebra used in stoichiometry?

+TheGamerWith(No)Brains yup AS level/A-level chem anyone? :/

+ZOEY CR7Xx O3 chem (5054) here, i got you bro

+8-Bit Senpai may june 620 fucking cambridge

IGCSE exam tomorrow.... anyone? no? okay. fml

i have my practical for AS chem on thursday

+Jose Martinez Are you from Singapore? bc your dp hahaha x

whats dp? And, its you're*.

+Jose Martinez it's 'your' bc 'dp' refers to display picture and is a noun, hence 'your' as it shows possession.

Stephanie Lim that makes sense. no, i just really liked the picture.

+Jose Martinez Its the funding that is the problem. Here in Mississippi we are trying to get our public schools funded with "Initiative 42" which, if it passes, will force the legislation to provide the exact amount of money that the law states we should receive. At the moment, public schools in MS receive far less than the law says we should have. And yet you still see people actively putting out advertisements that slander Initiative 42 because people are stupid.

Andromeda2803 I know what you mean.. I'm 26 and I want to gather as much information as I can.. because I started asking questions. In school they just put the information on the table and you have to eat it.. without really knowing what you are actually putting in your head. The education systems really must change. They must compel children to seek the knowledge.. not force it in their heads.

Andromeda2803 I'm a sophomore in high school and I get what you mean. The entire school system is just centered on mindless interminable homework assignments, and I (and many other students) would do so much better if there was no homework, and we were just watching the Crash course videos. The world would be a much better place if John and Hank were teachers.

Andromeda2803 Same here. I watch it on lunch time. I'm 28.

Andromeda2803 just passed my high school exams. Watching this video, i remembered everyone that followed chemistry complain about how dang complicated it is, molar equations being one of the major issues. just through looking up a couple videos since i need it for university, i already understand so much of chemistry with only like 10-15 hours put in, while they've had 400+ school hours and extra work at home. School is so bloody ineffective, i actually feel really fucking embarassed that our school system (Holland) is rated really high and that STILL in this system all kids/teens spend so many years in school while basically everything could be taught within a single year. It's just a fucking waste of 10+ years of a kids' life that could be spent on work, discipline, self-improvement and far deeper knowledge and understanding of all subjects now taught.

+Yuri Nate ikr especially math classes they give you random formulas w/o proofs

I do have a preAP chem final tomorrow omfg

Same my chemistry final is going to be hard

yup

I actually don't start the class until next week

actually its a fuckin college level intro class and my teacher can't speak fucking english

Don't be: Remember two things: 1 Mol is 6.022 * 10^23 and that AMU is basically how much it weighs in grams after multiplying by one mol. Confused? One mole of an element with an AMU of 57 would weight 57 grams, one mole of water is one hydrogen atoms and 2 oxygen atoms, which equals 34 grams.

hey dude, you actually seems to get this lol. do you know much about naming compounds?

I could help with naming compounds, depending how difficult they are.

I'm stuck on trying to learn how to name covalent compounds specifically. Like sufulric acid, and phosphorus acid, stuff like that

I have no idea how to name any compounds, but for acids, to name any acid: For binary acids(containing two elements, hydrogen and the other element) *Add the prefix _hydro-_ , and change the element's ending from anything to _-ic_, and then add _acid_ as another word. For example HCl becomes _hydro_chlor_ic_ acid HBr becomes _hydro_brom_ic_ acid HI becomes _hydro_iod_ic_ acid Not sure about polyatomic ions though. If the ion contains an _ate_ as a suffix, change that to _ic_ and add the word acid. If the acid contains a polyatomic(molecule) ion with the suffix _-ite_, simply change _-ite_ to _-ous_ and add the word acid. For example H2SO3 becomes sulfur_ous_ acid HNO2 becomes nitr_ous_ acid Naming bases is easier. Just use the name of a chemical and then change the ending of a non-metal element to _-ide_ For example: NaCl becomes Sodium Clor_ide_ If the base contains OH-, then simply name the metal, then add hydroxide NaOH is Sodium _Hydroxide_ KOH is Potassium _Hydroxide_ For bases without Hydroxide Ions(OH-), then you're on your own. Anything else, that's the limit of my knowledge. Try these handy resources www.sciencegeek.net/Chemistry/chempdfs/NamingAcids.pdf www.boundless.com/chemistry/textbooks/boundless-chemistry-textbook/atoms-molecules-and-ions-2/naming-compounds-38/naming-acids-and-bases-214-1019/ If you don't get the terms, a quick google search will help.

Keeps my sanity too.

Indeed, I am watching this and taking down notes while being home quarantined.

If there was no beatdstroking, we would have been in bronze age now..

ha ha

women too.

i'd give this a like, but it's copied =-=

​@@KingOfShenanigan All women have light fluffy facial hair. Its not profoundly dark and thickened (terminal hairs) like it often happens in men due to testosterone. But women have some facial. Vellus hair. Everyone but the freshly shaven and pre-pubescent kids can participate in stroky beard meetings

PlanetExpress and Lisa Meitner. But she was jewish during the Nazi regime so there’s also that factor.

She probably stroked her beard too

@@ilikecorks1715 she had the longest beard to stroke

***** still, I like they way he lectures.

Most instructors are just following a set of lectures on a textbook. This is why most f them don't really understand what they are teaching. How is it hard to have a degree in education when all you have to do is go to class everyday, but professors who have a PhD are another case.

Its a shame its only a crash course, ynow? I can't imagine how much I'd learn if he actually gave the class xD

It would be so awesome to have a teacher woth thia teaching style.

Agree, though I am afraid that I won't be able to catch up since there is no replay button in class. 😂

Uzumaki Naruto That's what I'm getting as well.. Easy mistake transposing numbers I suppose?

Uzumaki Naruto I got the same result, it's a shame that this kind of comments aren't the most popular, maybe because not everyone is pausing the video every second just to check and recreate all the data.

Uzumaki Naruto Typo, probably.

Uzumaki Naruto 11*16 is 176, not 171. That's one issue.

Octavio Reyes well at least right now this comment is the second top comment in the section, so i guess there's that... though the top comment goes to Planes for saying _"I struggled so hard with this shit my sophomore year in high school."_ so i totally understand.

stfu

Im Onkaar did you gain what you wanted from that?

@@thepremeddiaries5877 wut

+ColonelContinuum my 7th grade science teacher taught us some physics during the year and whenever we understood something she called it a MIND EXPLOSION!

Lol same

+ColonelContinuum so accurate

Same right now

Amazingness in Progress I never understood what's so hard about this. The most complicated portion of Stoichiometry is equation balancing, the rest is pretty self explanatory

Elijah Seabock Just wait until you get to aromatic organic chemistry. Benzene rings, resonance structures.. And most importantly how they react.

+Elijah Seabock same here I'm in 7th grade too

+‫جندي.‬‎ I said, i'll never use this, I'm not going to college for a science major, *3 years later, geology major* Shit.

+

The real reason is that Khan Academy already has Math on lock down. Check it out - it's free, it's awesome, and literally the only reason I passed my Algebra CLEP.

@@mustafamirza7064 wow you must be very smart

lol, nice dude =3

Yessir

Awesome

Got my chem final tomorrow.

Louie Lapat same

CHEESYMONKEY I have my ap chem final tomorrow morning

Same

i don't have finals I'm in middle school

lol got my final tomorrow still cant do it, this is my last hope

+Mystyc Cheez That's a cheesy pun

+Erin Williams that's punny

Lol...wait...UNDERTALE! Omg I love that game!

+Milo curry ikr!

no.....no.....NOOOOOOO

Me too just now once I realized how bad I did

Fuck ur country. Come to Britian like me! Fuck tou Fucking minecraft fcker.

AMERICA! FUCK YEAH!!!!!!!

I -like- love America, I just have a deep distaste for our system of measurement

We'll get there. It's a slow, stubborn process, though.

RU-vid Comments Suck fucking minecraft fcker? not only could you not capitalize Minecraft, you also forgot a u. Take that, brits.

And the medal for the least insightful figure of style goes too... Bilal Abbas. Because indeed, no matter how much we try, it's difficult to understand poison in our brain.

I guess I should've added that I take AP chem 2, which is considerably harder than the regular one. (Figure of style?)..・ヾ(。＞＜)シ

Don't worry, like arsenic, eventually you'll build up a tolerance to that stuff. Drink up!

Sir Francis Actually you don't build a tolerance to arsenic. Arsenic is a heavy metal, and heavy metal poisoning builds up over time to kill you slowly. It was in fact the advantage of that toxin in the renaissance era; the fact that it would seem like a slow death to disease. The only things you can build a resistance are the receptor mediated toxins, or the toxins that can be flagged and destroyed by the immune system; something like proteins. Definitely not arsenic.

Although of dubious source www.strangequestions.com/question/620/Can-you-build-up-a-resistance-to-arsenic.html I'd think you are right though, not safely.

1 Mol = 6.022 * 10^23 1 Amu * 1 Mol = 1g The rest is just application and utilization.

trust me it's alot worse in a REAL chem class

We chem teachers don't usually throw this stuff at you until at least halfway through the year, so don't feel bad.

@@coloraturaElise Got thrown it at the start.

Alexis Gelinas visualize orbitals in three dimensions. It might help.

Alexis Gelinas nah its extremely easy

yeah, that vedio was a bit way too complicated for a 7 class guy

@@tom-cr3cn sorry big man

@@TheNoobPube why you apologizing fam

+Jsunshine013 I caught that as well. there is another error at 8:03 it says 11mol x 16.00 g/mol is 171 g, when it is 176 g. However, his overall calculation was somehow correct.

it's probably a typo

I thought I was wrong thanks so much!

For calculating sig figs in addition, we round to the least amount places after the decimal. Wouldn't the mass of 1 mol of sucrose be 342 g?

Next time you eat sugar: hyperventilate

I know I definitely will. High five.

I have one tomorrow and I came here to figure out stoich

I have a quiz tomarrow

well ik im 3 years late, but still how did it go?

Freddie Mercury don’t worry , Yesterday was new year for me 🤣

Did u graduat4

+Brandon Wiebe honestly it is pointless when everything you need can be found online

Thats me every episode XD

i think its "time of eve" t-shirt...? .^-^.

Wait... this comment is a bad idea... audience is probably 90 percent high school students.... that mean you might have just told people how to spike punch at prom

Casey Ahumada *16.00

relative atomic mass or relative molecular mass in grams is called mole. have you read the books?

Amatun Noor lol i understand now

+sebastian cuello one mole of a substance is 6.022x10^23 molecules or atoms of a chemical ora element.

omfg for everybody. i watched like 2 more videos after that and that same afternoon i finally understood what a mole is.

cool

what I do everytime

me too

I'm just here for prepping before class starts.

I'm just here for prepping before school starts.

+Fred Beer Chemistry is awesome bud.

too late, it's my college major