Question

Please help me on diffusion and osmosis! MEDAL!!!

Answer 1

Hi :)
Is there a specific question you need help with?

Answer 2

Yes

Answer 3

Gimme a minute to post the question

Answer 4

How are the molecules moving in the examples below? Write OSMOSIS or DIFFUSION.

1. the student sitting next to you just came from gym class and forgot to shower and you can tell. _________________

Answer 5

I wrote osmosis but I m not sure

Answer 6

Yes our cells act as semipermeable membrane

Answer 7

2. after sitting in the bathtub for hours, your fingers start to look like prunes. (OSMOSIS?)

Answer 8

Yes same

Answer 9

3. the girl sitting two rows ahead of you put on too much perfume this morning (DIFFUSION?)

Answer 10

4. one way to get rid of slugs in your garden is to sprinkle salt on them, so they shrivel up (OSMOSIS?)

Answer 11

5. yum! something smells good. the neighbors are cooking on the grill. (DIFFUSION?)

Answer 12

Yes you are right in every question till now

Answer 13

6. Gargling with salt water when you have a sore throat causes your swollen throat cells to shrink and feel better. (this one i am not sure)

Answer 14

Osmosis

Answer 15

b/c it has to do with movement of water right?

Answer 16

7. oxygen molecules move from the air sacs in the lungs across the cell membranes into the blood. (DIFFUSION?)

Answer 17

Osmosis is this...

Answer 18

why?

Answer 19

This reply was for your previous comment ,,,,water right?

Answer 20

no, it's for the one that i just asked u now.

Answer 21

but anyway, i have to go. thx for ur help :)

Answer 22

It is diffusion ,

Answer 23

diffusion is the movement of fluid particles from a high pressure area or u can say a high concentrated region to a low pressure or low concentrated region.

For example take deodorant

u keep it left open in a room for some time
u'll notice that the smell reaches all over the room
this is because the fluid particles of the deodorant moved from region of higher concentration[ the deodorant bottle] to a region of low concentration[ the other part of room]

Answer 24

Osmosis is the process of transfer of a solvent from higher concentration to lower concentration through a semi permeable membrane.

For example u put a raisin and put it in water
u'll see that it swells up
this happens because the water molecules move from the water[higher concentration] to the raisin[ it has lower concentration of water] through the semi permeable membrane of the raisin.
:)

Answer 25

beautiful explanation!

Answer 26

thanks (;

Answer 27

Do you ever listen about diffusion in solids?

Answer 28

yeah like u take potassium permanganate[its a solid] and put it in water and then it dissolves in the water and the water turns pinkish.

Answer 29

diffusion is not so common in solids tho

Answer 30

Ya not so common but also in solid and solid

Answer 31

Are you sure your last example is of diffusion?

Answer 32

http://pubs.acs.org/doi/abs/10.1021/ed046p758