Dual Award Higher tier shaded blue, separate science Chemistry shaded green
|
9.1 Qualitative Analysis |
|
|
understand how to collect gases by upward and downward delivery, over water and using a gas syringe |
|
|
recall how to collect and how to test for hydrogen, oxygen, ammonia and CO2 |
|
|
appreciate the potential danger of explosion when hydrogen is collected or used |
|
|
recall the tests for the following ions in solids or solutions as appropriate: H+ (indicators, acid reactions), Na+, K+, Ca2+ (flame tests), Ca2+, Cu2+, Fe2+, Fe3+, NH4+ (NaOH solution), OH- (indicators, reaction with NH4+ salt), SO42- (dil HCl and BaCl2), CO32- (dil HNO3, identify gas evolved), Cl-, Br-, I- (dil HNO3 and AgNO3) |
|
|
explain and write equations for the ionic reactions involved in these tests |
|
|
9.2 Volumetric Analysis |
|
|
recall the procedure for carrying out simple acid-base titrations using burette, pipette and indicator |
|
|
convert mass concentration into mol/dm3 and vice versa |
|
|
perform simple calculations from the results of titration |
|