Question

A sample of an element x contains 60 atoms each weighing 12 amu ..And 40 atoms each weighing 14 amu ..Calculate the average atomic mass of x

Answer 1

Answer:

12.8amu

Explanation:

Atomic mass=(60*12+14*40)/(60+40)

=(720+560)/100=

=1280/100 =12.8amu