How many carbon atoms of mass 12.00 a m.u. are in 12.00 g of C?

1 Answer
Feb 4, 2016

Answer:

To a first approximation, there are Avogadro's number of such carbon atoms, i.e. #6.022xx10^23# carbon atoms.

Explanation:

By definition, there are Avogadro's number of carbon atoms in #12.00# #g# of #""^12C#. The atomic mass of #C# on the Periodic Table appears as #12.011# #g# because of the existence of #""^13C# and #""^14C# isotopes, which slightly inflate the molar mass.