Question

What is the mass percent composition of an element in a molecule?

OA. The fraction of the total number of atoms in the molecule that
comes from the element
B. The element's mass in the empirical formula divided by its
molecular formula mass
C. The fraction of the element's mass that comes from one atom of
the element
OD. The fraction of the molecule's mass that comes from the
element's mass
dom

Answer 1

Answer: B

Step-by-step explanation:

Because the amount each element in a molecule contributes to the total molecular mass