Question

How do you calculate this?

Answer 1

10.554 amu

Step-by-step explanation:

X1 has 10 amu with 72.3%

X2 has 12 amu with 100 - 72.3 = 27.7%

So average mass = 10(72.3%) + 12(27.7%)

= 10(0.723) + 12(0.277)

= 7.23 + 3.324

= 10.554 amu