I'm studying this summer in advance for my ap chemistry class next year and I've yet to find a set of videos that explain the concepts that are covered better than you! excited to binge watch this whole playlist XD
I am a high school student from sweden and I am currently in my second year in the natural science program (11th grade). Just wanted to say thank you for making such helpful videos!
I'm a biochemistry student so I know most the lessons, but I love how you explain them. I have been watching your videos for a time and I think you are a great teacher. Thank you.
When you're trying to find an empirical formula, you have to divide all of the values by the lowest number of moles (which in this case is 5.11). After that you get the 1, 1.33, and 1. You're supposed to write out the empirical formula based on those three values, but you can't write CH1.33O, so you multiply by a number that will make that irregular 1.33 a whole number for your empirical formula.
Thanks Paul, this is really, really well explained. I finally get this! I've been trying to understand moles for about 6 weeks and your video made me get it. Thank you so much for this, very much appreciate your lessons :-)
It’s 2022 and your video is still saving my life. Thank you so much Mr. Andersen! I have AP chemistry coming up next week and I’m very scared because I don’t know anything, but I think I’ll gain better understanding from your videos. You explained it so so well🙏🙏
Two questions: 1) at 5:20 - did you divide by 5.11 because this was the lowest number of moles of any of the constituent elements? So if the value for oxygen were 1.05 moles, then you'd divide all the numbers by 1.05? 2) 5:42 - when you say that the mass spectrometer can't be used to determine precisely whether you're dealing with C3H4O3 or C6H8O6, would this then be determined later via a precise density measurement? My guess is that equal volumes of these two compounds would differ in mass by a factor of 2.
Hi to Paul Andersen - I saw that the first video on chemistry was translated. But the second one not yet. I''d like to translate your videos - do I need a certain permission?
Tyler DeWitt is a better chemistry teacher, in fact, hes the best one out there, go search him up hes awesome. He makes everything so easily understandable in CHEMISTRY! He made me pass my chemistry class
+Vanessa de Alcântara Dantas Pereira Vanessa, he's not speaking fast. I totally get that it's really frustrating when you can't get it straight away, but please don't take out your frustration on Mr Anderson. I know it's really hard to understand this stuff but he's done a fantastic video here. Just keep watching it over and over till you get it. And just keep pausing it every few seconds and let what he's saying sink in :-)
![ตีสิบเดย์ [FULL] | นางเอกหมอลำเงินล้าน "อุ๋งอิ๋ง เพชรบ้านแพง" & ไฮโซสาวสุดฮอต "ลิลลี่ เหงียน"](http://i.ytimg.com/vi/jPxQS_EgrJ4/mqdefault.jpg)
I'm studying this summer in advance for my ap chemistry class next year and I've yet to find a set of videos that explain the concepts that are covered better than you! excited to binge watch this whole playlist XD
I am a high school student from sweden and I am currently in my second year in the natural science program (11th grade). Just wanted to say thank you for making such helpful videos!
kungsholmens gymnasium?
I'm a biochemistry student so I know most the lessons, but I love how you explain them. I have been watching your videos for a time and I think you are a great teacher. Thank you.
When you're trying to find an empirical formula, you have to divide all of the values by the lowest number of moles (which in this case is 5.11). After that you get the 1, 1.33, and 1. You're supposed to write out the empirical formula based on those three values, but you can't write CH1.33O, so you multiply by a number that will make that irregular 1.33 a whole number for your empirical formula.
Why does he multiply it by three though?
If you're still curious:
1 x 3 = 3
1.33 x 3 = 4
1 x 3 = 3
To get the empirical formula of C3H4O3
Though there are decimal point after the multiplication of 1.33 x 3 = 3.99
I believe it is then round off to 4
Thanks Paul, this is really, really well explained. I finally get this! I've been trying to understand moles for about 6 weeks and your video made me get it. Thank you so much for this, very much appreciate your lessons :-)
It’s 2022 and your video is still saving my life. Thank you so much Mr. Andersen! I have AP chemistry coming up next week and I’m very scared because I don’t know anything, but I think I’ll gain better understanding from your videos. You explained it so so well🙏🙏
Hey how are you doing now? I am on the same path with no prior chem classes. Can you share resources you used?
i was having so much trouble with moles, you seriously helped me out, thanks
OKKKK, be honest, @0:26ish when Bozeman moved to see if the eyes on the painting were following, you did the same. (Y)
I allways loved chemical analysis, but you make me feel like the first time I saw this on school. Thank you :')
Very nice ! Gave me hope that i wont always need to use reference material to identify compositions.
Thank you for the enlightenment! It was definitely better than my chem tr. explaination :)
Two questions:
1) at 5:20 - did you divide by 5.11 because this was the lowest number of moles of any of the constituent elements? So if the value for oxygen were 1.05 moles, then you'd divide all the numbers by 1.05?
2) 5:42 - when you say that the mass spectrometer can't be used to determine precisely whether you're dealing with C3H4O3 or C6H8O6, would this then be determined later via a precise density measurement? My guess is that equal volumes of these two compounds would differ in mass by a factor of 2.
I feel a lot more confident on my test now!
Thank you so much, sir. Your videos are great
my second year in college and I finally understood what a mole actually is and what it means 😓
Definitely , great vid!
It's really good. I have learnt a lot
Anyone else notice that the first letter of the elements in the analysis section spelled "CHOMP"?
Very nice ❤
Wow I'm really excited for my gen chem to start :)
This was so helpful, thank you!
Thanks
Hi to Paul Andersen - I saw that the first video on chemistry was translated. But the second one not yet. I''d like to translate your videos - do I need a certain permission?
Could you please make a video on relative reaction rates please? OCR a2 syllabus?
Tyler DeWitt is a better chemistry teacher, in fact, hes the best one out there, go search him up hes awesome. He makes everything so easily understandable in CHEMISTRY! He made me pass my chemistry class
true
Wonder full knowledge
super!!!
It's good.
To get an even number.
isnt this density
chemical related job
Hi
Be me
Cram for Clep test
Set at 2x
Read comments that read “why does he talk so fast”
...
Continue cramming
sir i had mailed you ... please please... read .. m eagerly waitng fr ur reply.. plz reply..
الوحيده هنا عربيه😂😂
Hagar Ahmed no 😂
you talk so fast...
Change video speed
you speak to fast! No interested in learn this crap, but I need to practice take note to my TOEFL
well dont watch the video simple
+Vanessa de Alcântara Dantas Pereira Vanessa, he's not speaking fast. I totally get that it's really frustrating when you can't get it straight away, but please don't take out your frustration on Mr Anderson. I know it's really hard to understand this stuff but he's done a fantastic video here. Just keep watching it over and over till you get it. And just keep pausing it every few seconds and let what he's saying sink in :-)