You analyze two substances in the laboratory and discover that each has the empirical formula CH2O. You can easily see that they
are different substances because one is a liquid with a sharp, biting odor and the other is an odorless, crystalline solid. How can you account for the fact that both have the same empirical formula?
Molecular formulas is the actual number of atoms of each element in the compound while empirical formulas is the simplest or reduced ratio of the elements in the compound.
Thus,
Molecular mass = n × Empirical mass
The empirical formula is
The two substances are differed by their physical properties.
These properties match with :
in which n =3 is molecular formula for lactic acid. Lactic acid is exists in liquid state and have a biting order.
in which n =6 is molecular formula for glucose. Glucose is exists in crystalline solid form and is odorless.
Explanation: Hydroxide, any chemical compound containing one or more groups, each comprising one atom each of oxygen and hydrogen bonded together and functioning as the negatively charged ion OH-.
Atomic radius is the distance from the nucleus of an atom the outermost energy shell or energy level.
The atomic radii of metals are greater than the ionic radii since metals form ions by losing electrons.
Calcium atom has a larger atomic radius compared to magnesium atom because it has more energy levels. Calcium atoms have four energy levels while magnesium atoms have three energy levels.
