chemical analysis Flashcards
(18 cards)
1
Q
NaOH light blue
A
Cu 2+ precipitate
2
Q
NaOH Green (slowly turning brown)
A
Fe2+ precipitate
3
Q
NaOH reddish-brown
A
Fe3+ precipitate
4
Q
NaOH no precipitate NH3 smell, turns litmus blue
A
NH4+
5
Q
NaOH no precipitate or ammonia
A
no ions detected
6
Q
NaOH white precipitate dissolves in more NaOH
A
Al3+ precipitate
7
Q
NaOH White doesn’t dissolve
A
Ca2+ or Mg2+ precipitate
8
Q
No flame colour
A
no or many possible ions
9
Q
Bright,golden Yellow flame colour
A
Na+ flame
10
Q
Bright red or crimson flame colour
A
Li+ flame
11
Q
Orange-red flame colour
A
Ca 2+ flame
12
Q
Green flame colour
A
Ba 2+ flame
13
Q
Lilac flame colour
A
K+ flame
14
Q
Fizzes Dilute acid, limewater cloudy
A
CO3 2-
15
Q
White barium chloride and hydrochloric acid
A
SO4 2-
16
Q
Silver nitrate and nitric acid whiten
A
Cl-
17
Q
Silver nitrate and nitric acid cream
A
Br-
18
Q
Silver nitrate and nitric acid yellow
A
I-
