👩🏼🔬 PhD chemist with over 20 years experience teaching college-level general and organic chemistry ❤️ Single mom trying to put a kid through college with a RU-vid side-hustle 🛍️ As an Amazon Associate, I earn from qualifying purchases. Thanks for your support!
Whew this has me on an emotional rollercoaster! I'm super proud of you for getting through chem, and I'm happy I was able to help despite being bad at it 😂😂😂
Best chanel ever i will come back when i wake up and take notes maybe ill learn some skills from you ❤️ you are great and its pleasure to listen to you ill be your student ❤️
roxi. my girl. my home girl. finished my aleks chem prerequisites bc of u. i hope ur pillow is cold on both sides tn. i hope you get a puppy. and i hope ur fav song comes on when u get in the car tmr. i hope they make ur coffee j like u want it. u a real one homie best of wishes 😘🫶
Another reason pharmaceutical companies protonate drugs produced in freebase form is to make the compound more stable (a less reactive molecule) and to put it into a form that is more easily dosed. Take dextroamphetamine (used to treat ADHD) and which also is an amine) for example, which when produced is an oily very reactive viscous liquid that decomposes fairly easily. The freebase is usually protonated with sulphuric acid to get dextroamphetamine sulfate, which is a white crystaline solid.
I watched this video and the explanation was super helpful since I use Aleks to learn concepts. But I realized after watching this that the stand alone element was always oxidized and the other one was always reduced. So I was able to finish this lesson in a couple mins that way.
I was so intimidated by this problem but the way you explained it was so simple and straight-forward. Also, I think it's funny when you rethink things like your molecule drawings or your labels. It actually makes it easier for me to pay attention and makes me smile. :)
Haha oh my gosh, I watched this video and what a disaster, lol! I make almost all of my videos in one take, no editing. This video was made during COVID while I was teaching from home, mentally exhausted, totally burned out, and losing my gd mind. I'm glad it works for you :)
i just want you to know, you are the best at explaining these aleks topics! i don't understand why aleks explanations cant be this clear. i passed chemistry last semester with a 97 because of you. hopefully this short summer semester I have the same outcome!
Hey that is AWESOME! A 97 is CRAZY!! I'm super proud of you, and hope that you recognize that YOU are the one doing all the hard work. These accelerated summer terms can be pretty brutal, but you've got it!
Sure! I've got 2 videos on pH / pOH. They're mostly about pH, so you can probably skip through a lot of it and just focus on the pOH parts. General info on pH and pOH here: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-6rJbbWSPIAk.htmlsi=5mA7-l7xexnV_qH8 Example calculations here: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-ABT2-K9SrJY.htmlsi=T5Aj-uSxw1X51T5U Let me know if you have questions!
I truly hope you get good $ for this channel bc you are legit the best. I watch your videos alone to learn every new concept I need for this wretched ALEKS program. You are a godsend.
Aaaaahhh thank you so much :) I am using the income from this channel to put my son through college and I'm so thankful for students like you who watch!
Every Aleks module I have trouble with, you have and explains it perfectly. There arent words to describe how much I, and many others appreciate you. Thank you so much!
@@RoxiHulet ok thanks. Also is orgo actually hard for someone that isn’t good at chemistry or doesn’t really like it that much like me? Bc I take the class this fall and I’m scared I might perform badly
@@hgedio I'm not going to lie - yes, it's a pretty hard class. But I am confident that anyone can do well! It's very different from gen chem, so don't assume that you won't be good at it, or that you won't like it. I'm working right now on a set of videos to help people prep for organic, so hopefully those will help you get a good head start! And I have the whole year's worth of ochem here on RU-vid, and I usually answer questions pretty quickly :)
@@hgedio It's a lot of work, but I think there's a lot of good resources online, including Roxi's channel! I might also recommend "Master Organic Chemistry", and if you need to look up a particular reaction or reactant, google image search can be your friend...
You are single-handedly getting me through Chem 1 & 2, literally. I don't know what I would do without you. Truly, thank you. Sincerely, a struggling student trying to make it into PA school. 🥲
“Solubility” usually refers to grams / L “Molar solubility” is mol / L However, sometimes people use solubility and molar solubility interchangeably, even though they aren’t the same thing. Always check the units to be safe. This problem is giving solubility (not molar solubility)… and the only reason I know that for sure is that the units are g/L.
Excellent question! For titrations, yes, you always change it to moles. This is because the volume changes during a titration, which means that molarity is not constant. Other types of ICE tables are typically done in molarity because they are constant-volume problems.
Roxi, please provide an updated video when we are asked to calculate the molar mass. The data provided are temperature, volume, pressure, and weight of the unknown compound.
