none of the above. is the answer
Answer:
The molecular formula lists the symbol of each element within the compound followed by a number (usually in subscript). The letter and number indicate how many of each type of element are in the compound. If there is only one atom of a particular element, then no number is written after the element.
Periodic table of elements
M₁=50 g
m₀=60 g
w=100m₁/m₀
w=100*50/60=83.3%
