What is average atomic mass? A. A way of calculating an individual atom’s mass.
B. The average mass of two different elements.
C. The average of all the naturally occurring isotopes of an element.
D. The average of all the naturally occurring ions of an element.

6) (a) calculate the absorbance of the solution if its concentration is 0.0278 m and its molar extinction coefficient is 35.9 l/(mol cm). the depth of the cell is 5 mm. (b) what is the %t? (7) calculate the absorbance of the solution if the transmitted light intensity is 70% of the initial light beam intensity