Analysis Flashcards
(25 cards)
Hydrogen test
Squeaky pop
Oxygen test
Glowing splint relights
Carbon dioxide test
Lime water goes cloudy
Red flame test
Lithium- Li+
Yellow flame test
Sodium- Na+
Lilac flame test
Potassium- K+
Orange-red flame test
Calcium- Ca2+
Blue-green flame test
copper- Cu2+
Ammonia test
Turns damp red litmus paper blue
Chlorine test
bleaches damp, blue litmus paper so it goes white
blue ppt with sodium hydroxide
copper- Cu2+
green ppt with sodium hydroxide
iron (II) - Fe2+
orange-brown ppt with sodium hydroxide
iron (III) - Fe3+
no ppt with sodium hydroxide
heat and test gas with damp, red litmus paper, turns blue - ammonia (NH4+)
cations
positively charged ions
anions
negative ions
carbonate test
add HCL and bubbles form (test CO2 in limewater)
sulfate test
HCL and barium chloride- white ppt
why do you add acid to test for halides and sulfates
to remove carbonate or sulphite ions
chloride test
add silver nitrate and nitric acid- white ppt of silver chloride
bromide test
add silver nitrate and nitric acid- cream ppt of silver bromide
iodide test
add silver nitrate and nitric acid- yellow ppt of silver iodide
test for water
anhydrous copper (II) sulfate turns from white to blue
water purity test
- boiling point should be 100 °C
- freezing point shoukd be 0 °C
