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Molar mass
- 1. The relationship betweenthe number of moles of a substance with its mass
- 2. Molar Mass Relate to Avogadro Constant Meaning
- 3. Mass Amount of substance 50 g of 2 kg of flower mangosteen 3 kg of papaya
- 4. Molar mass Mass ofone mole of element or compound in gram Unit Gram per mol (g/mol)
- 5. MOLAR MASS OFAN ELEMENT is found by looking at the atomic mass of the element on the periodic table Molar mass = (RAM) Relative Atomic Mass = (RMM) Relative Molecular Mass
- 6. Cobalt = 59g Bromine = 80g 1 mole element Iron = 56 g Calcium = 40 g
- 7. MOLAR MASS OFA CHEMICAL COMPOUND Molar masses of chemical compounds are equal to the sums of the molar masses of all the atoms in one molecule of that compound example : NaCl molar mass = molar mass of one atom of sodium + molar mass of one atom of chlorine Answer : 58.5 g
- 8. EXAMPLE OF CHEMICALCOMPOUND Sodium Chloride, NaCl 23g of sodium + 35g of chloride =58 g Water, H2O 2g hydrogen + 16g oxygen = 18g
- 9. MOLAR MASS RELATION TO AVOGADRO CONSTANT Molar mass = 1 mol mass 1 mol = 6.02 X 1023 Molar mass = mass of 6.02 X 1023
- 10. EXAMPLE 1 mole Aluminum Relative atomic mass 1 mol Aluminum has a mass of 27 g 1 mol of Aluminum contain 6.02 X 1023 atoms 6.02 X 1023 Atom of Aluminum has mass of 27g
- 11. sulfur water 1 mole - 32 g 1 mole - 18 g copper 1 mole - 64 g All this substance contain 6.02 X 1023
- 12. Building of ahouse One mole of nails contains 6.022 x 1023 nails One mole of screws contains 6.022 x 1023 screws One mole of woods contains 6.022 x 1023 woods
- 13. 1 Mol =6.02 X 10 23 SUBSTANCE He NaCl H 2O mol 1 2 3 Mass (g) 4.0 x 1 18.0 x 2 58.5 x 3 6.02 X 1023 6.02 X 1023 6.02 X 1023 NA x 1 x 2 x 3