Question

If one mole of carbon atoms weighs 12g what is the mass of 1 atom of carbon

Answer 1

6.022×10^23÷12 is the answer

Answer 2

1 mole of carbon weight = 12 g

1 mole carbon = 6.023×10²³ atoms  

Therefore,

6.023×10²³ atoms carbon weight = 12 grams

             1 atoms weight                  =$\frac{12}{6.023×10²³}$ gram

                                                        =1.99×10⁻²³ gram

                                                        =2×10⁻²³ gram

Therefore,

If one mole of carbon weight 12 gram, then the mass of one atom of carbon is 2×10⁻²³  gram.