The molecular
Step-by-step explanation:
Molecular formula consists of the chemical symbols for the constituent elements followed by numeric subscripts. The numeric subscripts only tell us the number of atoms of the constituent elements
[tex]\begin{gathered} _{}_{}_{}_{} \\ \text{ Molecular formula of water} \\ H_2O\text{ } \\ \text{The constistuent elements are hydrogen and oxygen} \\ \text{Water has 2 atoms of hydrogen and 1 atom of oxygen} \end{gathered}[/tex]Molecular mass of water can be calculated as follows
H2O
The molar mass of hydrogen is 1
The molar mass of oxygen is 16
Since water has two atoms of hydrogen and 1 atom of oxygen
Molecular mass of water = 2(1) + 1(16)
Molecular mass of water = 2 + 16
Molecular mass of water = 18g/mol
Hence, the molecular mass of water is 18g/mol