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Which has more number of atoms, 100g of sodium or 100g of iron. How??
Asked by Sadhwi sargam Last Modified
Answer 
Sameer Kumar
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Pankaj
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No of atoms in Sodium is more than the number of atoms in iron. When we calculate the mole of both element the sodium has more mole in comparison to iron that's why the atomic mass of sodium 23u and molar mass of sodium 23 g/mol and the atomic mass of iron is 56 and and molar mass of iron 56 g/mol when we calculate the mass of sodium = mass of sodium /molar mass of sodium
So the mass of sodium is greater than the mass of iron that's why sodium has more no of atoms than iron.
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100g of Na has more atoms than 100g of Fe .
Because. Atomic mass of Na=23 and Fe =56
So, for na , given maas/ molar mass × 6.022×10^23 = 100/23 × 6.022×10^23= 2.62×10^24 atoms
For Fe , given maas/ molar mass × 6.022×10^23 = 100/56 × 6.022×10^23= 1.07 ×10^24 atoms
100g of Na has more atoms than 100g of Fe
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