Identifying aqueous cations using NaOH or NH3 solution

0.0(0)
studied byStudied by 0 people
learnLearn
examPractice Test
spaced repetitionSpaced Repetition
heart puzzleMatch
flashcardsFlashcards
Card Sorting

1/13

encourage image

There's no tags or description

Looks like no tags are added yet.

Study Analytics
Name
Mastery
Learn
Test
Matching
Spaced

No study sessions yet.

14 Terms

1
New cards

What is observed when sodium hydroxide is added to ammonium (NH₄⁺)?

Ammonia gas is produced on warming (test with damp red litmus paper).

2
New cards

What is observed when ammonia solution is added to ammonium (NH₄⁺)?

No reaction.

3
New cards

What is observed when sodium hydroxide is added to copper(II) (Cu²⁺)?

Light blue gelatinous precipitate of copper hydroxide; insoluble in excess.

4
New cards

What is observed when ammonia solution is added to copper(II) (Cu²⁺)?

Light blue gelatinous precipitate; dissolves in excess ammonia, giving a deep blue solution.

5
New cards

What is observed when sodium hydroxide is added to iron(II) (Fe²⁺)?

Green gelatinous precipitate of iron(II) hydroxide; insoluble in excess.

6
New cards

What is observed when ammonia solution is added to iron(II) (Fe²⁺)?

Green gelatinous precipitate; insoluble in excess.

7
New cards

What is observed when sodium hydroxide is added to iron(III) (Fe³⁺)?

Rust-brown gelatinous precipitate of iron(III) hydroxide; insoluble in excess.

8
New cards

What is observed when ammonia solution is added to iron(III) (Fe³⁺)?

Rust-brown gelatinous precipitate; insoluble in excess.

9
New cards

What is observed when sodium hydroxide is added to calcium (Ca²⁺)?

White precipitate of calcium hydroxide; insoluble in excess.

10
New cards

What is observed when ammonia solution is added to calcium (Ca²⁺)?

No precipitate (or only a very slight precipitate).

11
New cards

What is observed when sodium hydroxide is added to zinc (Zn²⁺)?

White precipitate of zinc hydroxide; soluble in excess, giving a colourless solution.

12
New cards

What is observed when ammonia solution is added to zinc (Zn²⁺)?

White precipitate; soluble in excess.

13
New cards

What is observed when sodium hydroxide is added to aluminium (Al³⁺)?

White precipitate of aluminium hydroxide; soluble in excess, giving a colourless solution.

14
New cards

What is observed when ammonia solution is added to aluminium (Al³⁺)?

White precipitate; insoluble in excess.