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It is important to differentiate the stoichiometric or empirical formula of a molecular substance from its molecular formula. The former expresses only the relative numbers of atoms present, in the simplest present ratio. As, the compound of stoichiometry P2O5 occupy P4O10 molecules. Molecular formulae would be used when they are known. On the other hand, in a solid where clear molecular or other units do not exist the empirical formula is usually used. As,
NaCl is an ionic substance and the formula does not apply that molecules are present.
When solids contain identifiable groups such as complex ions or molecules the formula.
Azimuthal quantum number defines: (1) e/m ratio of electron (2) Spin of electron (3) Angular momentum of electron (4) Magnetic momentum of electron Ans: Angular mo
principle of EDTA method
Classification of polymers - On the basis of structure On the basis of structure of polymers these can be classified as (i) Linear polymers (ii) Branched chain polym
Q. Explain the structure of Alkenes? Ans. Alkenes have the general formula C n H 2n . Therefore, for every n carbon atoms, there are 2n hydrogen atoms. Alkenes have C =
Q. What do you mean by Nuclear Fusion? Ans. The idea of fusion is that two small unstable nuclei are smooshed together to make one larger stable nucleus. This is the type
what are the characteristics of s block elements?
what are causes of chemical bonding?
Q. Explain the use Radioactive Nuclides? Ans. Radioactive elements are easily found because they emit radiation. They can be used as tracers to show what is happening in
how to calculate equivalent weight of phenol
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