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Creado por Rannia Shehrish
hace casi 9 años
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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: