Properties Of Solution

Lisää tämän kaltaisia

4.2 Standards

luonut Wardina Syasya

Examination Skills

luonut Goodman Mkhatshwa

Sodium Chloride

luonut Deka Fouad

School Media Workshop

luonut indunil jayawardhana

Properties Of Solution

Colligative Properties

Osmotic Pressure [pressure to stop osmosis]

Subtopic

Low solute concentration => High solute concentration

Freezing Point Depression

Boiling Point Elevation

Vapour Pressure

2 compound system

P(total)= XP + XP

Raoult's Law [ideal solution]

P(solution) = X(solvent)P*(solvent)

Expressing Concentration

Molality (m) = moles of solute kilograms of solvent

Molarity (M) = moles of solute liters solution

ppb = mass of component in solution x 109 total mass of solution

ppm = mass of component in solution X 106 total mass of solution

Mole Fraction, X XA = nA nA + nB +nC

Mass% = mole component in solution x 100 total mole of solution

Factors Affecting Solubility

Solid - Liquid Solution

Qsp < Ksp [no precipitate form]

Qsp > Ksp [precipitate form]

Ksp= [A]^m * [B]^n

Hydration [solute surrounded by water molecules]

Solvation [molecules solvent surround molecules solute]

Liquid - Liquid Solution

Immiscible [form 2 layers]

Miscible [mix completely]

Attractive force between substances

Gas - Liquid Solution [constant T]

S(gas)= k(henry's law)* P(gas)

Temperature

Gaseous - Water [Higher T, Lower S]

Solid - Water [Higher T, Higher S]

Pressure, P [Gas - Liquid System]

Higher P, Higher S

Solute - Solvent Interactions

Stronger attraction, Higher S

Introduction

Types of solution

Supersaturated

Saturated

Unsaturated

Solution [Homogenoues mixture]

Solute [Dissolved susbtance]

Solvent [Gaseous , Liquid]

Solubility, S

Max amt. solute that dissolves in a given amt. of solvent.