Question

5.3
Activity
Ас
Osmosis with an egg
(a) Remove the shell of an egg by dissolving
it in dilute hydrochloric acid. The shell
is mostly calcium carbonate. A thin
outer skin now encloses the egg. Put
the egg in pure water and observe after
5 minutes. What do we observe?
The egg swells because water passes
into it by osmosis.
(b) Place a similar de-shelled egg in a
concentrated salt solution and observe
for 5 minutes. The egg shrinks. Why?
Water passes out of the egg solution
into the salt solution because the salt
solution is more concentrated.
5.2
We can also try a similar activity with dried
raisins or apricots.
Activity
5.4
PI​

Answer 1

Answer:

What do you think would happen to a shell-less egg if water passed out of the egg through the membrane? If water passes out of the egg through the membrane it will cause the egg to shrink and the mass of the egg will decrease.