Question

The number of atoms present n 0.5g of nitrogen is same as the atoms in​

Answer 1

Answer: Atomic mass of nitrogen = 14g. Therefore, mass of 1 mole of nitrogen = 14g. Now, 1 mole = 6.022 x 1023 atoms. Since, 1g-atom = 1 mole 0.5g-atom = 0.5 moles. Therefore, no. of atoms in 0.5 moles of Nitrogen = 6.022 x 10^23 x 0.5 = 3.011 x 10^238 g oxygen = 0.5 mole oxygen. Number of atoms in 0.5 mole oxygen =3.011 x 10^23So 8

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