question_answer

          Calculate the number of atoms in (a) 8 g of  molecules (b) 0.1 mole of C atoms[Atomic mass of 0 = 16,

Answer:

                      (a) 1 mole of molecules =32g =6.022 x1023 atoms 32 g of molecules contain 6.022 x 1023 atoms                                   8 g of 0>2 molecules contain atoms (b) 1  mole  of carbon  atoms  contain 6.022 x 1023 atoms                     0.1 mole ofC atoms will contain atoms