Mole of Atoms
1 mole of atoms of an element has a mass equal to the gram atomic mass of the element.That is,
1 mole of atoms of an element = Gram atomic mass of the element
Now, the atomic mass of oxygen (O) is 16 u, so gram atomic mass of oxygen will be 16 grams. Thus,
1 mole of oxygen atoms = Gram atomic mass of oxygen
= 16 grams
It should be noted that the symbol of an element represents 1 mole of atoms of that element.For example :
Symbol O represents 1 mole of oxygen atoms
and 2 O represents 2 moles of oxygen atoms
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. Molecular Formulae of Some Common Elements
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9. an example, let us give the significance of symbol C
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11. As an example, let us give the significance of the formula H
2O
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13. 2. A Negatively Charged Ion is Known as Anion
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16. Explanation of the Law of Conservation of Mass
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23. 1. A Positively Charged Ion is Known as Cation
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26. Simple Ions and Compound Ions (Polyatomic Ions)
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27. Gram Atomic Mass And Gram Molecular Mass
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31. 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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42. Problems Based On Moles Of Molecules
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43. Divalent Anions (Anions Having a Valency of 2-)
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44. Experiment to Verify Law of Conservation of Mass
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46. Writing Of Formulae Of Ionic Compounds
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