What is the mass of a single #""^20Ne# atom?

1 Answer
anor277
Mar 21, 2017

We divide the #"molar mass"# by #"Avogadro's number........."#

Explanation:

And thus #"atomic mass"# #=# #"Molar mass"/"Avogadro's number"#

#=(20*g*mol^-1)/N_A=(20*g*cancel(mol^-1))/(6.022xx10^23*cancel(mol^-1))#

#=3.32xx10^-23*g#.................

Note the dimensional consistency of the quotient; i.e. we wanted an answer with units of mass, and we got one......

Related questions
See all questions in The Mole
Impact of this question
1437 views around the world
You can reuse this answer
Creative Commons License