Question

Find the average atomic mass of iron made up of 15% 55Fe and 85% 56Fe

A - 55. 85

B - 39. 5

C - 5585

D - 211

Answer 1

Answer:

A- 55.85

Explanation:(15/100 ×55) + (85/100 × 56)

= 8.25+47.6

=55.85