Using the information in the table, calculate the molecular weight of ethanol, c2h5oh.

Molecular mass is the weight of a molecule calculated by adding the total atomic mass of each constituent multiplied by the number of atoms in a given molecule of a compound.

In this case, C = 12, O=16, H = 1, in ethanol there are 6 atoms of hydrogen, 2 atoms of carbon and 1 atom of oxygen.

Therefore, mass = (12*2) + (16*1) + (1*6) = 46

hence, the molecular mass of ethanol is 46