Chemistry U9- Molarity & Equilibrium

Molarity

MOST COMMON UNIT within a Concentration

Molarity = Moles/solute PER LITER of a solution

Represented as “M”

Solutions

SOLUTE + SOLVENT

Volume

the amount of space particles take up between the solute and the solvent

Solvent

Substance which DOES the dissolving (i.e. water)

Solute

Substance which is BEING dissolved (i.e. salt)

Equilibrium

Rate of forward reaction equals the rate of reverse reaction

Inc Concentration

Moves AWAY from substance

Dec Concentration

Move TOWARDS substance

Inc Pressure

towards LESS moles

Dec pressure

towards MORE moles

Inc Temp

AWAY from Heat (KJ / J in equation)

Dec temp

TOWARDS heat (KJ / J in equation)

Add Catalyst

Nothing, EQUAL for everything

Addition substance

“Moving TOWARDS means GOING UP”

Removal substance

“Moving away means GOING DOWN”

Le chatelier

Created the principle stating when a system at equilibrium is disturbed; IT SHIFTS TO REDUCE STRESS