Select the correct statement below.

(a) the percent composition (by mass) is the same for each element in that compounds empirical and molecular formulas.
(b) three different compounds having the same percent composition and the same molar mass will also have the same empirical formula.
(c) an element with the largest atomic mass is always the element present in the highest percentage by mass in a compound.
(d) a and b are correct
(e) a, b, and c are correct

A and B are correct.

Explanation:

As the mole ratio of elements in a compound are same in empirical formula and molecular formula, the mass percentage is also the same in both the formulas. So the statement is correct.

The compounds with same molecular formula will have same empirical formula as well.

It is not compulsory that element present in the highest percentage by mass in a compound. It depends upon the number of atoms of the element present in the compound.

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