A video on the limitations of Eppendorf pipettes would be very valuable. For example, you can not use it for cold or hot liquids, or liquids with a vapour pressure (e.g. methanol). Even some experienced lab technologists don't know this.
Often times, there might be a small amount of liquid that is still stuck to the inside of the pipette after squirting it out. Don't try to force this bit out. It's actually accounted for in the manufacturing of the pipette to dispense the proper volume.
Thanks Dave. As a college instructor introducing students to their first Chemistry course, I especially appreciate 1) such excellent UA-cam explanations, 2) getting them fresh now that a new quarter has begun, and 3) being an early commenter!
Can you please do a video debunking the targeted individual community conspiracy? They believe in mind control, voice to skull technology, thought broadcasting technology, directed energy weapons, and other stuff I have been part of their community. I am a diagnosed schizophrenic and my mind just can’t get away from believing the government is using this type of technology on me. It would be really nice to have someone as smart as you debunking their claims, so that when you search targeted individual, you’d get someone who is scientifically literate talking about it. It would truly mean so much to me. I am not very smart, and definitely not scientifically minded. I am very scared of this technology
I agree we need more people debunking this garbage, it is pervasive and sad how they are grifting on those with mental health issues to make click revenue
How do you know everything? Geology, Biology, Physics, Chemistry. I think you might be a bigger polymath than The Organic Chemistry Tutor. Honest question, not rhetorical
Hi Professor Dave! How do I reach out to you? If you can provide an email, I wanted to share one document that I was introduced recently. Wanted to know your response to it, too of you will.
That’s not the way how to empty a volume pipette into a container, flask. The pipette has to be hold vertically and the point has to touch the inner side of the container at an angle of 45°.
Yes. One of the many errors. I laughed out loud at the plastic pipettes that don’t even have any ability to measure being used as an accurate way to measure.
@@lbfeline2782 and that balloon. A decent balloon has three valves. One at the top to let the air out of the balloon if you squeeze it, one at the bottom to suck up the liquid in the volume pipette and one at the side to lower the amount of liquid in the pipette. I used to teach this stuff. Indeed, one of many errors.
@@chbu7081 It talks about pipettes being accurate, but in the demonstration he only uses the little plastic ones that aren't accurate for measuring at all. So it's implied by the demonstration
Considering the way he speaks in his videos, and how his claims compare to the studies in your responses, for the sake of a lot of chemistry students I hope a certain Dr. Tour is watching these and taking notes...
Hey professor Dave, what are your thoughts on "The Mandelbrot set, Atheist Worst Nightmare" by Answer in Genesis? The video they made has half a million views and clearly they don't understand math.
Hi Dave! Love ur videos. I’m a patron and I’d really appreciate if you checked out your discord. There’s someone in there saying they are a psychic and wanna debate you, LOL.
@@ProfessorDaveExplains Man, why you're so high all the time. Chill dude . I mean sometimes you just sound rude just like you're commenting a flat earther rather than to your viewer. Use emojis instead.
@@nirmalmishra6404 I have no idea what you're talking about. He asked a question and I answered. You are projecting tone onto my comments that is not there.
Wow, I think I need to checkout the manufacturing process behind those instruments.
im from sri lanka and i truely appreciate your effort trying to share knowledge all over the world
Thank you so much . Looking forward to the next videos in the series.
A video on the limitations of Eppendorf pipettes would be very valuable. For example, you can not use it for cold or hot liquids, or liquids with a vapour pressure (e.g. methanol). Even some experienced lab technologists don't know this.
Thank you Prof. Dave, I appreciate your respect for the chemistry.
Often times, there might be a small amount of liquid that is still stuck to the inside of the pipette after squirting it out. Don't try to force this bit out. It's actually accounted for in the manufacturing of the pipette to dispense the proper volume.
Thanks Dave. As a college instructor introducing students to their first Chemistry course, I especially appreciate 1) such excellent UA-cam explanations, 2) getting them fresh now that a new quarter has begun, and 3) being an early commenter!
Thank you professor Dave, I can appreciate your respect for the chemistry. I show this to my students, and they find it very helpful.
Great come back of this series :)
Will you do a video on performing NMR spectroscopy?
Can you do a video on proper mouth pipetting technique?
lol
Can you please do a video debunking the targeted individual community conspiracy? They believe in mind control, voice to skull technology, thought broadcasting technology, directed energy weapons, and other stuff
I have been part of their community. I am a diagnosed schizophrenic and my mind just can’t get away from believing the government is using this type of technology on me. It would be really nice to have someone as smart as you debunking their claims, so that when you search targeted individual, you’d get someone who is scientifically literate talking about it.
It would truly mean so much to me. I am not very smart, and definitely not scientifically minded. I am very scared of this technology
I agree we need more people debunking this garbage, it is pervasive and sad how they are grifting on those with mental health issues to make click revenue
thank you mr explains!
Thanks
will you do another James Tour video? I'm an Athiest but after watching his stuff he isn't as god god god as you made him seem haha
He absolutely is, he just hides it to trick people. Yes of course I will demolish his pathetic series once he’s done.
Very good
What else can you do?
How do you know everything? Geology, Biology, Physics, Chemistry. I think you might be a bigger polymath than The Organic Chemistry Tutor. Honest question, not rhetorical
Says something about my education level that I watch this to relax and help poop
Good
Can we get this guy a different lab coat? It's hard to see the glassware & clear liquids with a bright white background.
Hi Professor Dave!
How do I reach out to you? If you can provide an email, I wanted to share one document that I was introduced recently. Wanted to know your response to it, too of you will.
That’s not the way how to empty a volume pipette into a container, flask.
The pipette has to be hold vertically and the point has to touch the inner side of the container at an angle of 45°.
Yes. One of the many errors. I laughed out loud at the plastic pipettes that don’t even have any ability to measure being used as an accurate way to measure.
@@lbfeline2782 and that balloon. A decent balloon has three valves. One at the top to let the air out of the balloon if you squeeze it, one at the bottom to suck up the liquid in the volume pipette and one at the side to lower the amount of liquid in the pipette. I used to teach this stuff. Indeed, one of many errors.
@@lbfeline2782 Where does it say that the plastic Pasteur Pipettes are supposed to be an accurate way to measure liquid volumes?
@@chbu7081 It talks about pipettes being accurate, but in the demonstration he only uses the little plastic ones that aren't accurate for measuring at all. So it's implied by the demonstration
Considering the way he speaks in his videos, and how his claims compare to the studies in your responses, for the sake of a lot of chemistry students I hope a certain Dr. Tour is watching these and taking notes...
Hey professor Dave, what are your thoughts on "The Mandelbrot set, Atheist Worst Nightmare" by Answer in Genesis? The video they made has half a million views and clearly they don't understand math.
Never saw it, sounds profoundly stupid.
@@ProfessorDaveExplains It's from AiG, of course it's going to be profoundly stupid.
My lab considers glass transfer pipette to be disposable 🙊
Never been this early ever.
why are you dividing 0.025mol by 0.1mL? or how did you get 5g?
Hi Dave! Love ur videos. I’m a patron and I’d really appreciate if you checked out your discord. There’s someone in there saying they are a psychic and wanna debate you, LOL.
first time i've been this early :D
Is this free
You’re watching it, aren’t you?
@@ProfessorDaveExplains You made it, didn't you.
I did indeed.
@@ProfessorDaveExplains Man, why you're so high all the time. Chill dude . I mean sometimes you just sound rude just like you're commenting a flat earther rather than to your viewer. Use emojis instead.
@@nirmalmishra6404 I have no idea what you're talking about. He asked a question and I answered. You are projecting tone onto my comments that is not there.