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Chemistry
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Chemistry
Mole Concepts (3)
Chemistry
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Mole Concepts (3)
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Numbers of particles in 1 mol of ionic substance
1 mol of an ionic substance contains 6.02 × 1023 formula units
The background to the naming of Avogadro's Constant
The Avogadro constant is named after a famous Italian scientist, Amedeo Avogadro
Way to get the number of moles
The mass of a substance must be measured and we also need to know its molar mass
The value of molar mass of a substance
Is the same as its relative mass
The molar mass of carbon, C if the relative atomic mass of carbon, C is 12
The molar mass of carbon, C is 12 g mol–1
The molar mass of copper, Cu if the relative atomic mass of copper is 64
The molar mass of copper, Cu is 64 g mol–1
The molar mass of water that consists of H2O molecules if the relative atomic mass of water is 18
The molar mass of water is 18 g mol–1
The molar mass of sodium chloride that consists of NaCl units if the relative atomic mass of sodium chloride is 58.5
The molar mass of sodium chloride is = 58.5 g mol–1
The molar mass of oxygen, O if the relative atomic mass of oxygen is 16 g mol–1
The molar mass of oxygen is
The molar mass of bromine, Br if the relative atomic mass of bromine is 80
The molar mass of bromine is 80 g mol–1
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