WATER AND ITS PROPERTIES (LAB)

Question 1

___ solution will served as part of the solution that help to determine the osmosis

Answer 1

Iodine solution

Question 2

There will be a color change between the semipermeable membrane and the sorroundings, slightly ___/___ color

Answer 2

Purple
Violet

Question 3

Salt is highly soluble in ___ because the positive and negative ions are attracted to the polar water molecules

Answer 3

Water

Question 4

___ is insoluble in hexane due to its ionic compound and hexane is non-polar so they do not mix

Answer 4

Salt

Question 5

In water ___ is partially soluble for the reason that it can denature and precipitate out when heated or when the pH changes

Answer 5

Albumin

Question 6

Hexane and ionic compounds like copper sulfate do not mixed well

Question 7

___ is non polar and dissolves in non polar solvents like hexane

“Like dissolves like”

Answer 7

Margarine

Question 8

___ is soluble in hexane, it is partially polar and can dissolve in non-polar solvents like hexane

Answer 8

Ethanol

Question 9

FUNCTIONS OF WATER IN THE LIVING SYSTEM

1. ___ water is known as the universal solvent
2. ___ water has a high specific heat capacity
3. ___ in both plants and animals, water is essential for transporting nutrients, gases & waste products
4. ___ water is involved in many metabolic processes (hydrolysis and dehydration synthesis)
5. ___ water provides lubrication and act as cushion for organs
6. ___ water maintains cell turgor pressure
7. ___ water is key component in excretion of waste products

Answer 9

Solvent
Temperature regulation
Transport medium
Chemical reactions
Lubrication and cushioning
Structural support
Waste excretion