Te Raapa o te tekau ma iwa o Whiringa-a-nuku Wednesday 19 October
13 Chem do now:
Give a reagent you could use to distinguish between a) butan-1-ol and butanone, b) 1-chlorobutane and butanoyl chloride and c) octanol and ethanol
Give a reagent you could use to distinguish between a) butan-1-ol and butanone, b) 1-chlorobutane and butanoyl chloride and c) octanol and ethanol
Today's Aim: POLYMER REVISION
complex ions, pH and solubility
Consider lead hydroxide, Pb(OH)2.
Write an equation for its dissolution in water and then a Ks expression for the equation.
1. Account for the fact that the solubility of lead hydroxide INCREASES at low pH
2. Account for the fact that the solubility of lead hydroxide DECREASES if a SMALL increase in pH occurs
3. Account for the fact that the solubility of lead hydroxide INCREASES if a LARGE increase in pH occurs
Write an equation for its dissolution in water and then a Ks expression for the equation.
1. Account for the fact that the solubility of lead hydroxide INCREASES at low pH
2. Account for the fact that the solubility of lead hydroxide DECREASES if a SMALL increase in pH occurs
3. Account for the fact that the solubility of lead hydroxide INCREASES if a LARGE increase in pH occurs