Weighing on an Analytical Balance, A Chemistry Lab Demo From Thinkwell

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  • Опубликовано: 24 авг 2024

Комментарии • 67

  • @feleicia6565
    @feleicia6565 3 года назад +4

    Thank you, Professor Lee, for this video, and also for not speaking in pharmacy/chemistry-jargon. This clear instruction is exactly what I needed!

  • @Adelindcutie
    @Adelindcutie 10 лет назад +12

    Very well presented! Informative and precise. I stayed right through the very end! Keep up the good work!

    • @amazinglife9765
      @amazinglife9765 4 года назад

      Watch the video
      ruclips.net/video/lK1RUtJVXr8/видео.html

  • @paulrodgers7228
    @paulrodgers7228 4 года назад +4

    Dr. Gordon Yee! I had this guy at Virginia Tech for 3 classes! Great guy! Hard as hell professor!

    • @amazinglife9765
      @amazinglife9765 4 года назад

      Watch the video
      ruclips.net/video/lK1RUtJVXr8/видео.html

    • @amazinglife9765
      @amazinglife9765 4 года назад

      Watch the video
      ruclips.net/video/lK1RUtJVXr8/видео.html

  • @kathys254
    @kathys254 4 года назад +1

    Great video and recommended for all students in a college chemistry lab class. Dr. Yee's weighing technique can also be applied to other types of electronic balances found in an academic lab. I recommend using a micro-spatula instead of a scoopula for measuring very small amounts; you will have more control, and it's always preferable to patiently sneak up on the desired mass rather than take the paper off and remove some excess reagent, which not only takes more time but also produces more lab waste.
    Thanks Dr. Yee!!

    • @amazinglife9765
      @amazinglife9765 4 года назад

      Watch the video
      ruclips.net/video/lK1RUtJVXr8/видео.html

  • @jay_wuks
    @jay_wuks 2 года назад +1

    Great video, Great presentation! I learnt a lot! I can say I'm a pro at using the Analytical balance now.

  • @vincetheworldly537
    @vincetheworldly537 12 лет назад +3

    Good one Sir, very comprehensible and have no signs of arrogance to the knowledge he posses, Rare.

    • @amazinglife9765
      @amazinglife9765 4 года назад

      Watch the video
      ruclips.net/video/lK1RUtJVXr8/видео.html

  • @154saurabhkumar2
    @154saurabhkumar2 2 года назад +1

    Pranam! Thank you

  • @TaeThei
    @TaeThei 3 года назад +3

    The way he handles the Analytical Balance is like how I use my grandma's fine china

  • @AustinEze-qy7kmqy7km
    @AustinEze-qy7kmqy7km 3 месяца назад

    I love this

  • @labteknik275
    @labteknik275 Год назад +1

    Product Video ---> ruclips.net/video/6qYcDvtcSNU/видео.html

  • @homaedo7547
    @homaedo7547 10 месяцев назад

    Damn this is good presentation

  • @marka295
    @marka295 7 лет назад +2

    very clear and informative, thank you!

    • @amazinglife9765
      @amazinglife9765 4 года назад

      Watch the video
      ruclips.net/video/lK1RUtJVXr8/видео.html

  • @Mikej1592
    @Mikej1592 14 лет назад +3

    as the ink drys it gets lighter, so the number would keep going down till the ink completely dried (thats my theory) awesum scale.

    • @amazinglife9765
      @amazinglife9765 4 года назад

      Watch the video
      ruclips.net/video/lK1RUtJVXr8/видео.html

  • @ProJanitor
    @ProJanitor 14 лет назад +2

    I'll be sure to remember to clean up after I'm done

    • @amazinglife9765
      @amazinglife9765 4 года назад

      Watch the video
      ruclips.net/video/lK1RUtJVXr8/видео.html

  • @ke123321ek
    @ke123321ek 2 года назад

    The solvent in the ink was evaporating off, that's why it was drifting down.

  • @donsutherland5706
    @donsutherland5706 3 года назад +4

    The ink on the card weighed 1.5 mg initially and then decreased to 1.0 mg. I am surprised he didn't seem to realize that the reason for the decrease was that the solvent in the ink was evaporating.

  • @digitalscalehochoice4743
    @digitalscalehochoice4743 5 лет назад

    This is a great instructional video.

    • @amazinglife9765
      @amazinglife9765 4 года назад

      Watch the video
      ruclips.net/video/lK1RUtJVXr8/видео.html

  • @movax20h
    @movax20h 5 лет назад

    I think the slow drop in the weight of ink, is due to some solvent evaporating from it as it is on paper. Wow.

    • @amazinglife9765
      @amazinglife9765 4 года назад

      Watch the video
      ruclips.net/video/lK1RUtJVXr8/видео.html

  • @mrmprm8732
    @mrmprm8732 5 лет назад

    How to weigh adsorbents like moisture adsorbing zeolite pellet, silica gel powder, sticky fine powders? I worked on a setup having antistatic guard, silica gel pan to adsorb moisture & glove box that can be supplied with nitrogen and the weighing scale plus adsorbent container all kept inside the glove box.

    • @amazinglife9765
      @amazinglife9765 4 года назад

      Watch the video
      ruclips.net/video/lK1RUtJVXr8/видео.html

  • @artemuertes1220
    @artemuertes1220 4 года назад +1

    Hello friend, I want to ask a question. I have a cheap 0.01 scale. Yesterday I wanted to weigh two and a half (2,500) grams and the indication on the scales read 2, 53. Does that mean it's 2 grams and 530 milligrams? thanks .. Anyone who can answer I would appreciate it.

    • @amazinglife9765
      @amazinglife9765 4 года назад

      Watch the video
      ruclips.net/video/lK1RUtJVXr8/видео.html

  • @rachaelnunn3186
    @rachaelnunn3186 4 года назад +14

    Watching this in 2020 has me cringing when he coughs into his hand😭

    • @rachael9352
      @rachael9352 3 года назад +1

      same also name twins

    • @labteknik
      @labteknik Год назад +1

      ruclips.net/channel/UCW9H2dfYvqIc5wq2DqaG2xQ

  • @kathys254
    @kathys254 6 лет назад +3

    This is the only video on weighing that shows the finesse required to efficiently weigh a specific amount of solid on an analytical balance. But, why isn't the presenter wearing goggles in the lab?!!

    • @mrmprm8732
      @mrmprm8732 5 лет назад

      Handgloves, lab coat, lab glasses and cover for nose and mouth

    • @amazinglife9765
      @amazinglife9765 4 года назад

      Watch the video
      ruclips.net/video/lK1RUtJVXr8/видео.html

  • @mohanakaruppiah4587
    @mohanakaruppiah4587 5 лет назад

    How to weigh polymeric liquid sample using weighing balance

    • @amazinglife9765
      @amazinglife9765 4 года назад

      Watch the video
      ruclips.net/video/lK1RUtJVXr8/видео.html

  • @noharsayrathiya6885
    @noharsayrathiya6885 5 лет назад

    sir weight see kaise nape

  • @cabrejuanjo
    @cabrejuanjo 5 лет назад +6

    2:26 The ink starts to evaporate.

    • @amazinglife9765
      @amazinglife9765 4 года назад

      Watch the video
      ruclips.net/video/lK1RUtJVXr8/видео.html

  • @liluzi131
    @liluzi131 4 года назад

    nice

    • @amazinglife9765
      @amazinglife9765 4 года назад

      Watch the video
      ruclips.net/video/lK1RUtJVXr8/видео.html

  • @ebhawesh
    @ebhawesh 6 лет назад

    Fine

    • @amazinglife9765
      @amazinglife9765 4 года назад

      Watch the video
      ruclips.net/video/lK1RUtJVXr8/видео.html

  • @SunnySunny-we7yr
    @SunnySunny-we7yr 5 лет назад

    Scale price

    • @amazinglife9765
      @amazinglife9765 4 года назад

      Watch the video
      ruclips.net/video/lK1RUtJVXr8/видео.html

  • @captainmurphy52
    @captainmurphy52 14 лет назад +1

    Even though you may have as many hairs on your head, as there are stars in the sky, it does not mean that you can plan a successful party, and expect celebrities to attend, and have a good time.

    • @amazinglife9765
      @amazinglife9765 4 года назад

      Watch the video
      ruclips.net/video/lK1RUtJVXr8/видео.html

  • @jkdunk20001988
    @jkdunk20001988 4 года назад

    So this is the scale I need to weigh fentanyl correct make the pack fire 🔥 but not od 🔥 got it thanks

    • @amazinglife9765
      @amazinglife9765 4 года назад

      Watch the video
      ruclips.net/video/lK1RUtJVXr8/видео.html

  • @rahulrawatqanoi1000
    @rahulrawatqanoi1000 4 года назад

    rate

    • @amazinglife9765
      @amazinglife9765 4 года назад

      Watch the video
      ruclips.net/video/lK1RUtJVXr8/видео.html

  • @martinc2648
    @martinc2648 3 года назад +1

    if your a drug dealer and need to step up your game well now here's your chance to own one.

  • @jkid1134
    @jkid1134 14 лет назад +1

    Holy crap! First view!!!

    • @amazinglife9765
      @amazinglife9765 4 года назад

      Watch the video
      ruclips.net/video/lK1RUtJVXr8/видео.html

  • @gitterfritter
    @gitterfritter 14 лет назад

    Wacka wacka

    • @amazinglife9765
      @amazinglife9765 4 года назад

      Watch the video
      ruclips.net/video/lK1RUtJVXr8/видео.html

  • @toeey1
    @toeey1 8 лет назад

    Using a 30 year old balance

    • @amazinglife9765
      @amazinglife9765 4 года назад

      Watch the video
      ruclips.net/video/lK1RUtJVXr8/видео.html

    • @amazinglife9765
      @amazinglife9765 4 года назад

      Watch the video
      ruclips.net/video/lK1RUtJVXr8/видео.html