Qualitative Chemistry, C1

Quantum number

To find the number of magnetic quantum numbers, what equation do we use?

Relation between the 4 quantum numbers

Energy of an orbital

Values of s, p, d, f

No two electrons in an atom can have the same values for all four quantum numbers.

Electrons first enter into lower energy orbitals and subsequent electrons enter into higher energy orbital gradually.

Electron pairing will not take place in orbitals of same energy until each orbital is singly filled.

Stability depends on:
1. Exchange energy
2. symmetry

1 angstrom

Equation relating wavelength, frequency and wave velocity

Speed on light in miles/second

Which EM wave is used for the following?
1. Broadcasting
2. Physiotherapy
3. cooking and telephone transmission
4. Cancer treatment
5. medical diagnosis
6. Analysis of atomic and molecular spectroscopy

Which EM waves have the following wavelength?
1. 800nm to 300,000nm
2. 10^6 to 10^8
3. 10^-3 to 10^-1nm
4. 10^-1 to 10nm
5. 10 to 750nm
6. 10^8 to 10^12nm
7. 400 to 700nm

The solar spectrum is a.........

Planck's Quantum theory

Emission spectrum of hydrogen

Fluorescent:
1. absorbs
2. emits

Use of infrared:

MRI:

Flame test: Green

Flame test: persistent golden yellow

Flame test: Lilac or violet

Flame test: Dull orange red

Flame test: apple green

Flame test: Crimson red

Flame test: Green flashes

Flame test: Dull bluish white

Units of solubility

All Group I, Ammonium and nitrate ions are......

Most halides and sulphates are soluble except....

Most carbonates, phosphates, hydroxides and sulfides are....

1. Ionic product < solubility product
2. Ionic product = solubility product
3. Ionic product > solubility product

At a particular temperature, the solubility product is ....

Most silver salts are....

Soluble Carbonates and phosphates are of

Soluble Sulfides are

Potassium Ferrocyanide:
1. Reddish brown ppt
2. Pale blue
3. Deep blue

H2S is added to the salt solution to give white ppt

Ammonium oxolate reacts with the solution to give a white ppt

Potassium pyroantimonate is added to the solution to give white ppt

Nessler's solution is added to give Brown ppt

Barium nitrate or lead acetate is added to the solution to give a white ppt

1. barium nitrate and heat
2. barium nitrate and aqueous solution

Nitric acid followed by silver nitrate gives:
1. white ppt
2. cream ppt
3. yellow ppt

Add sodium hydroxide, white ppt.
With excess the ppt dissolves.

Add ammonium hydroxide - white ppt.
Add sodium hydroxide - ppt dissolves.
Add ammonium hydroxide again - white ppt forms.

Potassium ferricyanide:
1. blue ppt
2. brown ppt

1. potassium ferrocyanide give reddish brown ppt.
2. ammonium hydroxide gives light blue ppt. In excess, the ppt dissolves to give a deep blue solution.
3. Potassium iodide gives white ppt.

Cubic

Tetragonal

Orthorhombic

Monoclinic

Rhombohedral

Triclinic

Hexagonal

Simple Distillation

Simple distillation can be used to separate:

Fractional distillation

Uses of fractional distillation

Steam distillation

Atmospheric pressure =

For solvent extraction you need

Chromatography is of 2 types. They are:

Adsorption chromatography is of 2 types. They are:

Partition chromatography is of 2 types. They are: