Which of the following steps correctly 1.25 of fluorine to an equivalent mass of fluorine in grams?

A. Add 1.25 to the atomic mass of fluorine

B. Divide the atomic of fluorine by 1.25

C. Subtract 1.25 from the atomic mass of fluorine

D. Multiply the atomic mass of fluorine by 1.25

D. Multiply the atomic mass of fluorine by 1.25

Explanation:

We are given;

1.25 moles of Fluorine

We need to identify the formula that shows the equivalent in mass

We need to know the relationship between mass of an element, its atomic mass and the number of moles; That is; Number of moles = Mass of the element : Atomic mass

Therefore;

Mass of the element = Number of moles * atomic mass

Thus, in this case, to get mass we will multiply number of moles by atomic mass of Fluorine. That is, multiply atomic mass of fluorine by 1.25 moles.