Question

give reason that 1 mole of different compounds have different masses but have the same number of molecules.​

Answer 1

Since equal number of gram atoms(moles) of different elements contain equal number of atoms. Hence, 1 mole (23g ) of sodium and 1 mole (238)g of uranium contain equal number of atoms , i , e ,6.02x1023 atoms.

Answer 2

since equal gram of atom (moles) of different element contain equal number of atoms, hence , 1 mole(23)g of sodium and 1 mole(238)g of uranium contain equal number of atoms......

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