EVERYDAY SCIENCE

Detailed explanation-1: -To determine the empirical formula of a known substance, such as glucose, we take the subscripts of the molecular formula (C6H12O6) and reduce then to the simplest whole number ratios. If we divide this by 6, we get C1H2O1.

Detailed explanation-2: -So the empirical formula of this compound c 8, a 6 o 4 is c 4 h, 3, o.

Detailed explanation-3: -Thus, for empirical formula CH2O and molecular mass 180 , molecular formula is C6H12O6.

Detailed explanation-4: -The molecular formula of acetic acid is CH3COOH . The actual whole number ratio in the order of C : H : O is 2 : 4 : 2 . The smallest simple whole number ratio in the order of C : H : O is 1 : 2 : 1. Hence, the empirical formula of acetic acid is CH2O .