Explanation
A water molecule (H₂O) consists of two hydrogen atoms (1 amu each) and one oxygen atom (16 amu), summing to 18 amu. This is the standard molecular mass based on atomic masses.
Practice this MCQ: What is the molecular mass of a water molecule?. Check correct answer and detailed explanation on MrProfessor.
A water molecule (H₂O) consists of two hydrogen atoms (1 amu each) and one oxygen atom (16 amu), summing to 18 amu. This is the standard molecular mass based on atomic masses.