Solubility

Question 1

Physical properties are largely determined by what

Answer 1

Strength of VDWF in between molecules

Question 2

These include what

Answer 2

M&b points
Viscosity
Solubility

Question 3

What is the m&b of a substance dependant on

Answer 3

Type of VDWF present
Total no of electrons in a molecule

Question 4

What is solubility

Answer 4

Ability of a substance to dissolve in a solvent

Question 5

What is the principe

Answer 5

Is the ability of a substance to dissolve and discovered bylike dissolve like”? This means that polar substances usually only dissolve in polar solvents?

Question 6

Why does that happen

Answer 6

This is due to the permanent dipoles that exist in polar compounds that allow them to be attracted to each other

A nonpolar substance doesn’t have this therefore not attracted

Question 7

Ionic solubility

Answer 7

Ionic substances tend to be soluble and aqueous substances due to the charges on the ions being attracted to the dipoles and polar solvents

Question 8

What can electric field be used for

Answer 8

To decide if a molecule is polar or not
If places in a electric field it polar molecules will repel or attract

Question 9

Density of ice

Particles

Answer 9

When Portugal are together, it makes the substance more dense

When water forms ice the hydrogen bonds in between the molecule lock the molecule into a type of lattice structure

Question 10

What does the presence of hydrogen bonding do

Answer 10

Rather then letting the molecules lock togther they form hexagonal rings which have most of empty space between them & this is the reason Ice is less dense than water