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Quantitative analysis - Estimation of Elements
After qualitative analysis of elements, the another step in the determination of molecular formula of an organic compound is the estimation of several elements by mass, that is finding the percentage composition of the elements by mass. The several methods generally employed for the estimation of principal elements are as follow:
1. Carbon and Hydrogen
2. Nitrogen
3. Halogens
4. Sulphur
5. Phosphorous
6. Oxygen
Fine grain sizes are obtained by slow cooling
Which of the following set of quantum number is not valid: (1) n=1, l=2 (2) 3=2, m=1 (3) m=3,l=0 (4) 3=4,l=2
PFEFFER METHOD
Coordination number and geometry Binary compounds are ones with two different elements present. 'Simple' crystal structures can be classed as ones in which each atom (or
Charectaristic of covalent bond
Ask question #MinimName two compound that are covalent when taken pure but produce ions when dissolved in water. um00 words accepted#
For the formation of covalent bond, the difference in the value of electron egativities should be: (1) Equal to or less than 1.7 (2) More than 1.7 (3) 1.7 or mor
need help answering questions for the lab
Octane number - Characteristics of hydrocarbons It is utilized for measuring the knocking character of fuel utilized in petrol engine. The octane quantity of an offered sample
Uses of Formic acid - Carboxylic acids (a) Formic acid is used in the laboratory for preparation of carbon monoxide. (b) Formic acid is used in the preservation of fruits.
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