how many atoms are present in 0.9g of aluminum and 0.8g of iron ( give atomic mass of AL=24 amu and Fe=56 amu
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no of moles of atoms present in 9 grams of aluminium is 0.33 moles. mole of a substance contains 6.022×10 atoms/molecules so 0.014324 moles will contain 0.014324×6.022×10 atoms. i.e 0.086259×10 atoms of iron which is approximately equal to 86.259×10 atoms.
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