The molecular weight of glycolic acid is also an organic compound. To understand its molecular weight, it is necessary to know its constituent elements and atomic number. The chemical formula of glycolic acid is $C_ {2} H_ {4} O_ {3} $. The atomic weight of

carbon ($C $) is about 12, the atomic weight of hydrogen ($H $) is about 1, and the atomic weight of oxygen ($O $) is about 16. According to its chemical formula, it contains two atoms of carbon, four atoms of hydrogen, and three atoms of oxygen. The molecular weight of

is calculated as follows: the total atomic weight of carbon is 2 dollars\ times12 = 24 $; the total atomic weight of hydrogen is 4 dollars\ times1 = 4 $; the total atomic weight of oxygen is 3 dollars\ times16 = 48 $.

Therefore, the molecular weight of glycolic acid is 24 dollars + 4 + 48 = 76 $. This is the molecular weight of glycolic acid.