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Science@Waikato
New Zealand
Приєднався 1 лют 2018
These videos are intended to highlight key points of some common laboratory techniques, as taught in the School of Science at the University of Waikato.
The creation of the videos is a collaboration by three Senior Tutors, Martina, Blair and Brydget, who teach lab classes in Chemistry and Biology.
The creation of the videos is a collaboration by three Senior Tutors, Martina, Blair and Brydget, who teach lab classes in Chemistry and Biology.
Introduction to Excel part 3
This video is a brief guide on how to create a scatterplot in Excel for science students
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Відео
Introduction to Excel 1
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This video is a brief introduction to the basics of Excel for science students
CHEMY102 Experiment 10
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This video is about the preparation of ethyl acetate from ethanol and acetic acid
CHEMY102 Experiment 9
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This video is about the preparation and purification by distillation of tert. butylchloride
CHEMY102 Experiment 11
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This video is about the preparation of an Azo dye (Fast Red A)
CHEMY102 Experiment 8b ketone/aldehyde
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This video is about distinguishing between ketones and aldehydes with Tollens' test and Fehling's solution
CHEMY102 Experiment 8b alkane/alkene
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This video is about using bromine water and permanganate solution to distinguish between alkanes and alkenes
CHEMY102 Experiment 8a
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This video is about the purification of Benzoic acid by recrystallisation
CHEMY102 Experiment 5
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This video is about the investigation of kinetics with crystal violet
CHEMY102 Experiment 6
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This video is about electrochemistry: preparing dilutions and setting up a Daniell cell
CHEMY102 Experiment 4
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This video is about investigating the kinetics of the reaction between potassium iodide and hydrogen peroxide
CHEMY102 Experiment 3
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This video is about the preparation of the heating mixture in a Flameless Ration Heater
CHEMY102 Experiment 2 part 2
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This video is about investigating the thermodynamics of instant cold packs
CHEMY102 Experiment 2 part 1
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This video is about the preparation of an Instant hot pack
CHEMY101 Experiment 9 inorganic materials III
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CHEMY101 Experiment 9 inorganic materials III
CHEMY101 Experiment 9 Inorganic materials II
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CHEMY101 Experiment 9 Inorganic materials II
CHEMY101 Experiment 9 Inorganic materials I
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CHEMY101 Experiment 9 Inorganic materials I
CHEMY101 Experiment 8 Iodometric titration
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CHEMY101 Experiment 8 Iodometric titration
CHEMY101-20A Experiment 7 Phosphates part B
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CHEMY101-20A Experiment 7 Phosphates part B
How to prepare bacterial dilutions for plate counting/Aseptic technique
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How to prepare bacterial dilutions for plate counting/Aseptic technique
How to use a micropipette (for biology) - Science@Waikato
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How to use a micropipette (for biology) - Science@Waikato
How to load and run an SDS-PAGE gel - Science@Waikato
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How to load and run an SDS-PAGE gel - Science@Waikato
❤👍🏼
Can I use this vacuum sistem for filtration glycerin extract.
Can you give me an exact measurement for each ingredients?
This was just a demonstration of principle, so I didn't measure out the amounts. I just used a tip of a spatula full of each reactant
Incredible
What are the instrument parameters
Thanks for this
Sorry to say I don';t understand at all😠😠
0:56
Is this food safe?
Awesome... I love this
What kind of fluid is that?
What sulphate? I couldn't hear
I used iron(II) ammonium sulphate.
Thanks. Thats a great solution. Unfortunately these filters are quite expensive for one time use. Is it possible to use fritted glass filter filters instead? If i understand correctly they can be cleaned and re-sterilized.
So helpful thank you 🤍
How did u extract the magnetite from paper to vial
We rolled up the dried filter paper, inserted it halfway into the vial and scraped the magnetite off
Thank you
God bless the Germans
loved the edition!!
looks nasty filtrate
Beautiful and helpful. Thank you.
mama, that is a faucet 🤣
What kind of vaccum pump is this? Please elaborate
which one is it, white, red or beta black or alpha black phosphorous
It's white phosphorus
@@sciencewaikato5734 Thanks
اخ يالواجب الزق
What is this inorganic material? Name?
Gm,
Thank you💐
Can your show fluorine with alkane
Bro wants a death sentence
What vacuum presure it is? I can’t get fluid flowing at such rate, using quick filtration filter, and fluid only flowing dropnby drop.
It really depends on the solid that you're trying to filter, if it's fine particular matter it is difficult to filter as it will clog the pores quickly.
What filder paper did you use?
Just regular filter paper (qualitative) form Whatman or Schleicher & Schuell
@@sciencewaikato5734 Did you select based on particle size of the pigment?
@@lol101xoxox No, we just used common filter paper.
pog
why is the vaccuum pipe attached to the top of the container not the bottom does it make a difference?
You need to attach the hose to the nozzle on the vacuum flask, and that is at the top. That allows for the filtered liquid to collect in the flask without being sucked into the vacuum hose.
@@sciencewaikato5734 thank you
Thank you every much.
This app will not change my life
Nice
Thank you
Thanks.... 💕
مبدعه
有间接碘量法测葡萄糖含量的视频吗
Is it more accurate to prepare a standard solution once in the volumetric flask or first dissolving it in a beaker
The rolling gear is running after filling pipette. What should I do to solve this problem
Hello, I am Fadi from Algeria, specialized in engineering methods. I am studying how to separate a mixture of liquid-liquid, miscible and immiscible, and when I saw your channel and the methods you use, I understood very well the lessons that I am studying. Thank you
I kind of want to buy one of these setups just to make coffee. I feel like you could get some really smooth coffee by vacuum filtering it from the grounds.
We were talking about vacuum filtration in my chemistry lab and the lightbulb immediately clicked.. I’ve been manually filtering my cold brew at least 2 times or else it’s not smooth. But it takes a looooong time if enough sediment is floating in the coffee. Strongly considering getting a setup
@@slowedits2063 I wonder if the process would be quicker if you passed the hot coffee through a conical sieve to remove the larger bits of ground before filtering it.
Shit I have one I might try that
If you bind the tannins and other impurities with some sort of sticky protein, like casein, ahead of time, you can actually end up with crystal-clear, pale yellow coffee. It has a distinctly coffee flavor, but much more subtle, and with very little bitterness. It's pretty crazy! And it allows you to put coffee flavor in things that you normally wouldn't because of the color, like pancake batter or donut glaze, or even things like chicken soup, which might sound odd at first, but a splash of clarified coffee actually makes chicken stock taste extra "roasty", which is delicious.
poggers
Thanks so much that’s was so informative
Thanks 👍👍 explanation Is very good 😌☺️☺️
thanks very much
Vacuum filters are used for.. A dewatering of sludge B filteration of sludge Wat is the ans
A
Thank you very much for this fantastic work ☺️
Awesome video