inorganic chemistry Flashcards
potassium chloride flame test colour
lilac
copper chloride flame test colour
bluey greeny
calcium chloride flame test colour
red
lithium chloride flame test colour
pink
sodium chloride flame test colour
orange
with what and why do we clean the wire?
- clean with hydrochloric acid (HCl)
- cleans the wire to remove any impurities. also allows the ions to stick onto the wire
soluble or insoluble - all nitrates
soluble
soluble or insoluble - most common chlorides
soluble
soluble or insoluble - most common sulphates
soluble
soluble or insoluble - lead + silver chloride
insoluble
soluble or insoluble - sodium, potassium, ammonium, sometimes calcium hydroxide
soluble
soluble or insoluble - most metal hydroxides
insoluble (sometimes almost)
soluble or insoluble - sodium potassium and ammonium compounds
soluble
soluble or insoluble - lead sulphate, barium, silver and calcium
insoluble
soluble or insoluble - sodium, potassium, ammonium carbonates
soluble
hydrogen gas test
put a lit splint near the test tube
if hydrogen is present, a squeaky pop should occur
oxygen gas test
glowing (not lit) splint put near the test tube
if oxygen is present, the splint should be set alight
carbon dioxide gas test
bubble the gas through and aqueous solution of calcium hydroxide (aka limewater)
if carbon dioxide is present, limewater should turn milky
chlorine gas test
damp litmus paper over test tube
if chlorine gas is present, the litmus paper bleaches and turns white