Notes
Notes - notes.io |
If there are more molecules on one side than the other, then the molecules from the higher concentration will begin to become more dilute as some of the molecules will begin to move to the other side to balance out both sides.
Osmosis in potatoes: Practical
1) Cut up a potato into identical cylinders preferably using metal cylinders to help them get into similar shapes.
2) Get some test tubes with different sugar solutions in them: There should be one test tube with pure water, and one very concentrated sugar solution such as 1dm cubed, and few other weaker solutions in between such as 0.2 mol/dm cubed, 0.4 and 0.6.
3) Measure the potatoes in cylindrical shape and then place each one of them into each of the test tubes, leaving them for 24 hours.
4) After 24 hours, take potatoes and dry them using a paper towel, then re-measure their mass.
If a potato has taken in the water by osmosis then the mass would increase
If water has been drawn out the mass would decrease.
Dependent Variable : The chip mass
Independent Variable : Concentration of sugar solution
Control variable: Volume of solution, temperature, time, type of sugar used.
Possible errors:
If the potato hasn't been dried properly using a paper towel, it could've given it an extra mass.
If water has evaporated from the test tubes, the concentration of sugar may chance
Therefore to avoid this error, repeat the experiment and calculate the mean percentage change
|
|
Notes.io is a web-based application for taking notes. You can take your notes and share with others people. If you like taking long notes, notes.io is designed for you. To date, over 8,000,000,000 notes created and continuing...
With notes.io;
- * You can take a note from anywhere and any device with internet connection.
- * You can share the notes in social platforms (YouTube, Facebook, Twitter, instagram etc.).
- * You can quickly share your contents without website, blog and e-mail.
- * You don't need to create any Account to share a note. As you wish you can use quick, easy and best shortened notes with sms, websites, e-mail, or messaging services (WhatsApp, iMessage, Telegram, Signal).
- * Notes.io has fabulous infrastructure design for a short link and allows you to share the note as an easy and understandable link.
Fast: Notes.io is built for speed and performance. You can take a notes quickly and browse your archive.
Easy: Notes.io doesn’t require installation. Just write and share note!
Short: Notes.io’s url just 8 character. You’ll get shorten link of your note when you want to share. (Ex: notes.io/q )
Free: Notes.io works for 12 years and has been free since the day it was started.
You immediately create your first note and start sharing with the ones you wish. If you want to contact us, you can use the following communication channels;
Email: [email protected]
Twitter: http://twitter.com/notesio
Instagram: http://instagram.com/notes.io
Facebook: http://facebook.com/notesio
Regards;
Notes.io Team
