Significance of the Formula of a Substance
1.Formula represents the name of the substance.
2.Formula represents one molecule of the substance.
3.Formula also represents one mole of molecules of the substance. That is, formula also represents 6.022 x molecules of the substance.
4.Formula gives the names of all the elements present in the molecule.
5.Formula gives the number of atoms of each element present in one molecule.
6.Formula represents a definite mass of the substance (equal to molecular mass expressed in grams).
Notes
Atoms and Molecules - Notes
2. Monovalent Cations (Cations Having a Valency of 1+)
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3. Divalent Cations (Cations Having a Valency of 2+)
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5. Trivalent Cations (Cations Having a Valency of 3+)
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6. Formulae of Some Molecular Compounds
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8. an example, let us give the significance of symbol C
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9. Molecular Formulae of Some Common Elements
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11. 2. A Negatively Charged Ion is Known as Anion
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12. As an example, let us give the significance of the formula H
2O
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16. Explanation of the Law of Conservation of Mass
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23. Simple Ions and Compound Ions (Polyatomic Ions)
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24. 1. A Positively Charged Ion is Known as Cation
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28. Gram Atomic Mass And Gram Molecular Mass
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32. Explanation of the Law of Constant Proportions
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34. Significance of the Formula of a Substance
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36. Molecular Masses of Some Common Elements
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40. Divalent Anions (Anions Having a Valency of 2-)
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44. Writing Of Formulae Of Ionic Compounds
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45. Problems Based On Moles Of Molecules
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47. Experiment to Verify Law of Conservation of Mass
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50. Writing Of Formulae Of Molecular Compounds
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