Lab Protocol - Dialysis Tubing Experiments (Unit 7 Diffusion)

In this tutorial I discuss how we use dialysis tubing in experiments 6.2 and 6.3. For more information regarding the actual outcomes of these experiments, please refer to the reviews regarding these experiments.

[@keilaaviles7017]

Although you posted this long ago, this helped me understand how to do my at home lab assignment. THANK YOUUUU!

[@Mark-It-Yourself]

Happy to help!

[@AdnFarooq-ux7qp]

I have a question
The diagram shows an experiment demonstrating Osmosis using a dialysis tubing bag. After 30 minutes the level of the liquid in the glass tube goes up because the water had a _ water potential than the sugar solution. Can you fill the blank

[@maggie2988]

@@AdnFarooq-ux7qp water always travels to lower water potentials.
a sugar solution has a lower water potential.

[@Anaonfire]

Still helpful as ever 9 years later! Thank you for this :D

[@AdnFarooq-ux7qp]

I have a question
The diagram shows an experiment demonstrating Osmosis using a dialysis tubing bag. After 30 minutes the level of the liquid in the glass tube goes up because the water had a _ water potential than the sugar solution. Can you fill the blank

[@verosolana4946]

currently doing this lab virtually but I still wanted to see how it looks in real life, super informative and definitely helped me understand it more, thank you!

[@AdnFarooq-ux7qp]

I have a question
The diagram shows an experiment demonstrating Osmosis using a dialysis tubing bag. After 30 minutes the level of the liquid in the glass tube goes up because the water had a _ water potential than the sugar solution. Can you fill the blank

[@Mark-It-Yourself]

You are quite welcome. I'm happy that it helped.

[@Mark-It-Yourself]

You are welcome. Happy I could help!

[@priyakannan1211]

need help

[@takeiteasy941]

really helpful, i have an assessed practical on this tomorrow, made me feel a lot more confident :P

[@aishwaryaangadi2146]

Very nice explanation sir
But can you tell me the name of the dialysis bed used

[@Mark-It-Yourself]

Dialysis tubing was purchased from Carolina scientific: www.carolina.com/dialysis-tubing/dialysis-tubing/FAM_684202.pr

[@treliuz5476]

Thank you so much! This video was very informative and easy to understand.

[@cell060]

that is helpful. one question: why do we need to leave one small air bubble before sealing? thanks

[@hageraltay6312]

This is a helpful video

[@jinsysebastian2291]

What is the solution you added inside the bag

[@cell060]

thank you very much collin. Just another quick question. I found my polymer precipitating during dialysis due to the insolubility in water. Can I use DMF for dialysis solution instead which can dissolve my polymer? Thanks for your help

[@jinsysebastian2291]

What is the material used to make the bag here ?

[@maryamazeez7918]

very great explanation

[@xrguydxdyxdgixgicticyiciyc4662]

I'm doing a adi osmosis experiment with salt water and water I'm confused

[@thangarajn8]

how to do calculation using Excel? please tell me sir

[@FallenAngels9691]

Question which may be odd but is the dialysis tube just plastic or is it made out of anything specific?

[@Mark-It-Yourself]

The ones we used in our labs were cellulose (ie the same compound found in plant cell walls).

[@eniyakannan727]

Using that thread name sir plz reply

[@aqeelazaafirah4595]

is that an actual dialysis tubing or can i just use a plastic paper instead?

[@machiiu9120]

Dialysis tubing is better as it has small holes on it which allowes water to pass through ^

[@nush_nush]

the tube must be wet. as I know. you should keep it in a 50-50 water-ethanol solution. and before all, at first you must activate the tube.

[@402ashley1]

What does the incrrease and decrease in mass mean in term of osmosis ?

[@SAhmad-du3wc]

Thank you

[@puneetchhina456]

thank you!

[@mrdeadfrogger]

cool

[@klausmikaelson2881]

Could you please share the lab manual

[@parthasarathisubramanian2539]

Can I reuse the membrane after this experiment?

[@1985salem]

thanx alot

[@abbieholland8762]

Semi-permeable, not selectively permeable. Pore sizes don't change.

[@nikkisanders8358]

Those 2 words mean the same thing. You can also call it differentially permeable.

[@Blues.003]

selective and semi hold the same meaning in this context.

[@supergreatsuper]

Why don't we fill the dialysis tubing by opening it while it is submerged in whatever we want to fill it with?

[@alecbrenes9691]

what are the variables?

[@neidarojo4555]

Has anyone done a lab report for this

[@xXUniqueSunRaysXx]

that was helpful, thx

[@thankssherlock]

Where can i buy dialysis tubing?

[@arianereyretiza9745]

sheshhh

[@rafaelaaraujo6279]

Baby ^^