After spending several weeks and many class periods on stoichiometry and percent yield, I could still not grasp this concept. After watching 12 minutes of videos, everything is clear. Thanks so much!

still lost...

@merlin88888

4 жыл бұрын

Same

@arianator1204

4 жыл бұрын

a mood

you explained it better than my teacher, this was really helpful

@brightstorm

10 жыл бұрын

Thanks for watching our video.

@hariniravichandran4094

7 жыл бұрын

Felipe quevedo I

SHE'S MY FAVORITE!!!! GOD BLESS HER! who would have thought chemistry could be so simple.... my professor makes me so confused with such simple concepts.

get a new Blue marker please I was struggling to see what you wrote

@dylanscrogham

8 жыл бұрын

Get new eyes

@donovan12340

5 жыл бұрын

You blind

@cassafrasspotterhead4851

5 жыл бұрын

Same here, I could hardly read anything on that board.

@TarunKumar-nc8dh

5 жыл бұрын

LMAO don't watch in 144p

@brauljo

4 жыл бұрын

@@TarunKumar-nc8dh Lol cuz 240p is practically Ultra HD.

Aced my final because of you. Much love.

@brightstorm

8 жыл бұрын

+Reinaldo Jackson That's the highest praise we can get. Thank you so much for watching our video.

@donovan12340

5 жыл бұрын

Don’t lie

This tutor has helped me in so many situations in chemistry! Thank you so much!!!

Thank you so much! I have a chemistry test soon and this helped incredibly!

You are my go-to whenever I have a chem question. You explain everything so well. THANK YOU!!

@dylanscrogham

8 жыл бұрын

Thats dumb learn from my channel

You explained it so well! Thanks!

She is such an amazing teacher!! I saw a vid on physics heat nd stuff a few months ago, and now I found her agn trying to understand percentage yield. Yayy I hope more ppl benifit from this awesome explanation.

You did a better job at explaining that that tutors online. Thank you so much!!! 10/10

your super speedy teaching compels one to give full attention to what you teach without meandering even for a fraction of a second !

Thank you, you are such a great teacher. All your videos are so helpful

thank you sooo much. i had absolutely NO HOPE in learning this and i got it with watching this video one time. you're great.

Balance the two reactants: K2CrO4 + AgNO3 = Double Replacement. K2 and Ag switch, creating: Ag2CrO4 + KNO3

Thank you! You're a lifesaver. This is not nearly as hard as I imagined.

Test tomorrow! This is great review!! Thanks!!

Thank you so much! Your video has helped me a lot!

Thanks alot. You've saved me alot of time searching through the internet.

people be making some dumb comments lmao

@dylanscrogham

8 жыл бұрын

Great example

@naweedbabakarkhail5210

7 жыл бұрын

dylan why u roasting everyone here lmao

that actually really helped thank you for that

YAAASS THANKYOU, YOU SAVED MY LAAAYYF😍

Fantastic tutorial! THANK YOU.

Thankyou so very much you are the best chemistry teacher i have encountered till now :)

I love you for this! Thank you!

If I understand this correctly, there's a very simple way to get an average extraction yield. Weigh the Original dried ingredient you'd like to extract. Infuse your dried substance and filter. Now dehydrate the remainder Fibrous content to get rid of most of the water - comparable to its original state, and Weigh it again. The difference in weight before and after the infusion of the dried matter will show you how much extracted content you now have mixed within your liquid. For example, if the dried coffee was 100g before extraction, and after filtration and dehydration is 60g, the total dissolved/extracted content is 40g.

thank you keep it simple and straight to the point

This is a big help, thank you.

OMG!!! you saved my life big exam on this tomorrow help out a lot and also thanks on the stoichiometry vid.

thank you! this helped me so much!

perfect explanation thank you so much so clear and simple

Thank you. You explained it very well

makes sense- finally- i have spent the last year trying to understand this stuff

Not only did your attractiveness help me pay attention and make sense out of theoretical yield, but you're a very good teacher. THANK YOU!!

@jswaggamingcool

3 жыл бұрын

ew

@TWINSNAKE47

3 жыл бұрын

@@jswaggamingcool 🤡

Thanks! Got it down pat now

this helped so much!

5 min KZread video explains it better than a 3 hours lecture. Thank you!

omg... ur amazing, just helped me finish my lab :)

I love how I find this the day before the final, if I would have just searched this months ago I wouldn't even have to take the final...

truly, heaven sent

This was great! Thanks !

Thanks to you, I finally got this. my chem teacher can't teach. Thank you!

thank you so much!!

always making my life easier, thanks :)

You helped me A LOT

Keep up these helpful videos :D

Well that made it easy, thank you!

How did you get your molar mass? For AgNO3 I got 125.037 and for AgCrO4 I got about 224.

Helped a lot 👍🏼

wow i love this i got a test tomorrow helped me understand better

omg seriously helped so much

how can i find all of your videos??

thnx :) i have my chm finals today this really helped me review

I LOVE THIS LADY!

this is great! keep it up

Omg.. thank you! now I'm ready for my exam!

Thank youuuu....life savor

this helped my out for my chem final. u ROCK!!!!!!!!!!!

If i plant 4 ounces of green pepper seeds during spring, how much percent will my harvest yield in the summer

what if you have liters instead of grams?

Oh m goodness. Why am I paying tuition so a professor can attempt to teach me, with no result mind you, when I can just watch you and learn it instantly! I applaud you! you have helped me so much! Thanks :) :)

Thanks!

Hey guys, instead of doing that weird table calculation thing, you can use the equation 'mass (g) = moles x molar mass' and rearrange that, so you'd get the moles of 2AgNO3, then divide that by 2 to get moles of Ag2CrO4, then just convert that into mass via the equation ^^ (hope I wrote it right, it's 23:16pm lol)

Legit just saved my life!

thanks excellent videos

How would you do this with molecules?

These videos are what is going to save my life.

where did the potassium nitrate come from?

@myagood3942

7 жыл бұрын

Seriously!! *uugh face emoji** I dont know why I watch her videos! every single video there is a problem, from her speeding through the "explanation/tutorial", to her studdering and making so many mistakes. I cant keep up. Potassium Nitrate wasnt in the initial problem, but you know it belongs in the equation because its on the reactant side.... This is not a good video for anyone trying to learn. I'm happy she has something to do in her spare time though -__-

@donamathew5616

7 жыл бұрын

Since it is a double replacement reaction, there will be two products. One of them was given in the problem and the other you have to figure out.I suggest learning about the types of chemical equations in which double replacement is one, so you can see how potassium nitrate was formed

@dylounis

6 жыл бұрын

yo chill there is no error, it's a double replacement reaction which is why potassium nitrate was formed.

@NAprincess324

5 жыл бұрын

Mya Good yes it was very fast I kept having to go back I need step by step

THANK U MAAM!

thank you thank you thank you thank you

Are these videos not able to be corrected and edited before posting?

if actual yield is way different than theoretical yield can there be some mistake in the theory itself..... so by that we can prove the theory wrong right?

Where did the potassium nitrate come from at 2:05?

@sunjayking4011

8 жыл бұрын

+Kareem Callender It's a double replacement reaction, the potassium switches with the silver in the reaction. If you want information on how exactly double replacement reactions work, look it up cauuuseee I can't type it all out.

Good lesson

thank you

where did you get potassium nitrate from? :/

Superb

Hey what if I am doing a lab in the front of the room? Does percent yield change?

thank u

do you have to always balance the equation?

What if my problem says 10.0g of ethane reacted with 40.0g of oxygen and 18.9g of carbon dioxide is produced? Do you add together the products and then do what you did, or what? I need help!

this helped and made it so easy but my chem teacher gives really difficult questions

Nice Explanation, but can you fix quality problem?? Because some people have issue and can't see.

Yes. you always have to balance the equation, if you dont your mole ratio will be wrong and therefore you will get a wrong answer.

Is this on igcse chemistry or is this A level coz im sure ive never learnt these complex ones

nitrate has a charge of -1 why did you balance it by adding the 2 coefficient?

Legend

thank yooooooou!:D

I could here the dryness of the marker on the board😬

Dear God thank you for this!

thru double replacement.

my teacher stinks at explaining, we often become more confused... thank god for these videos

AgNO3= 169.85, but she uses 169.9 (Ag=107.87, N=14.01, O3= 16.00x3=48.00) = 169.85. You forgot to put the 2 on the AgCrO4 so, its Ag2CrO4. there are 2 Ag. (Ag=107.87x2= 215.74, Cr= 52.00, O4= 16.00x4=64.00) = 331.74, but she uses 331.8 I hope this clears your problem. I actually got it and learn it better then in class. Its confusing in class. But if I hear it more often then it becomes easy and fun actually.

When you balanced the equation, why didn't you use the K2NO3 instead of 2KNO3?

Your videos are awesome, too bad I found you in my summer vacation, AFTER I'm done with my chemistry exam

I wish there was a job opening at my school so you could teach us rather then my teacher.

you would be a super ochem lab professor/TA.

oh man, thanks man, oh man

I GET IT NOW!!! SO YOU HAD TO BALANCE THE EQUATIONS FIRST SO THAT YOU COULD DO THE STEP BY STEP CALCULATIONS. AM I RIGHT?

@santoryu8940

7 жыл бұрын

yes

@EternalScary

7 жыл бұрын

yes because that way your mole to mole conversion is accurate