Test for positive ions

bella.mort
Mind Map by bella.mort, updated more than 1 year ago
136
17
0

Description

Some positive ion can be identified using a flame test or by using sodium hydroxide solution.

Resource summary

Test for positive ions
1 Flame Test
1.1 Metal Ions produce colours when put into a flame
1.1.1 Lithium (Li+) : Crimson
1.1.2 Sodium (Na+) : Yellow
1.1.3 Potassium (K+) : Lilac
1.1.4 Calcium (Ca2+) : Red
1.1.5 Barium (Ba2+) : Green
2 Sodium Hydroxide Solution
2.1 The hydroxides of most metals that have ions with 2+ or 3+ charges are insoluble in water
2.1.1 When sodium hydroxide solution is added to solutions of theses ions a precipitate of the metal hydroxide forms
2.1.1.1 Aluminium, calcium and magnesium ions form white precipitate.
2.1.1.2 When excess sodium hydroxide solution is added the precipitate of aluminium hydroxide dissolves.
2.1.1.3 Copper (II) hydroxide : blue
2.1.1.4 Iron (II) hydroxide : green
2.1.1.5 Iron (III) hydroxide : Brown
Show full summary Hide full summary

Similar

C7 Quiz - Energetics
Leah Firmstone
Chemistry Keywords
John Appleseed
Acids and Bases quiz
Derek Cumberbatch
Ionic Bondic Flashcards.
anjumn10
Electrolysis
lisawinkler10
The Periodic Table
asramanathan
Acids, Bases and Salts
asramanathan
Chemical Symbols
Keera
Chemistry Module C2: Material Choices
James McConnell
GCSE - AQA: C1.1 The Fundamental Ideas in Chemistry
Olly Okeniyi
C1 Quiz
Leah Firmstone