Question

What information is needed to determine a molecular formula?

A.
The empirical formula and the percent composition
B.
The empirical formula and the empirical formula mass
C.
The empirical formula and the molar mass
D.
The empirical formula and the molarity of the solution

Answer 1

Step-by-step explanation:

Divide the molar mass of the compound by the empirical formula mass. The result should be a whole number or very close to a whole number. Multiply all the subscripts in the empirical formula by the whole number found in step 2. The result is the molecular formula

Answer 2

C. The empirical formula and the molar mass

Step-by-step explanation: