which represents the empirical formula for a₃b₉?\no ab₃\no ab₂\no a₃b₉\no a₉b₂₇

which represents the empirical formula for a₃b₉?\no ab₃\no ab₂\no a₃b₉\no a₉b₂₇
Answer
Explanation:
Step1: Recall empirical formula concept
The empirical formula is the simplest whole - number ratio of atoms in a compound.
Step2: Find the ratio of atoms in (A_3B_9)
For (A_3B_9), divide the sub - scripts by their greatest common divisor. The greatest common divisor of 3 and 9 is 3. Dividing 3 by 3 gives 1 for (A), and dividing 9 by 3 gives 3 for (B). So the empirical formula is (AB_3).
Answer:
A. (AB_3)