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Drugs - Chemistry in Action Drugs may be a single chemical atom or a combination of two or more dissimilar substances. An perfect drug should assure the following needs, Whi
What is the principle underlying the extraction of metal
chemical physical properties and uses
4-nitrotolouene ---> LiAlH 4 converts it to 4-aminotoluene ----> Add HNO 2 and it forms -----> diazonium salt ------> add H 3 PO 2 to get Toluene -----> add Br 2 /CCl 4 - 2
real life application
what is leader manase reaction
What is use of acetonitrile compare to methanol in RP-HPLC Method development? ACN is highly polar as compare to Methanol So give Better resolution for more compound and it has p
5 points on nickel plating
Q. What is Atomic Mass Units? Ans. Notice in the last column of the table, the masses of the subatomic particles are reported in atomic mass units. The actual masses of electro
Q. Show the Multiple covalent bonds between electron pairs? Ans. Two atoms may share one electron pair, two electron pairs or three electron pairs. The bonds formed in th
The mole is a unit of dimension or measurement used in chemistry theory to calculate amounts of a chemical substance, defined as an amount of a substance which contains as many elementary entities (e.g., atoms, molecules, electrons, ions) as there are atoms in 12 grams of pure carbon-12 (12C), the isotope of carbon with atomic weight 12. This corresponds to a value of 6.02214179(30)×1023 elementary entities of the substance. This is one of the base units in the International System of Units ISU, and has the unit symbol mol.
The mole is broadly used in chemistry, in its place of units of mass or volume, as a convenient way to express the amounts of reactants & products of chemical reactions.
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