What is the molar mass of water H2O - JAMB Chemistry 2023 Question
What is the molar mass of water (H2O)?
A
18 g/mol
B
22 g/mol
C
16 g/mol
D
12 g/mol
correct option: a
The molar mass of water (H2O) is calculated by adding the atomic masses of its constituent atoms. The atomic mass of hydrogen (H) is approximately 1 g/mol, and the atomic mass of oxygen (O) is approximately 16 g/mol. Therefore, the molar mass of water (H2O) is:
2 atoms of hydrogen (2 × 1 g/mol) + 1 atom of oxygen (1 × 16 g/mol) = 18 g/mol
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