Question

calculate molar mass of h2o​

Answer 1

Answer:

18

Explanation:

Atomic Number of Hydrogen is 1 and Atomic weight is also 1.

Atomic Number of Oxygen is 8 and we know that the formula of calculating molar mass/molecular weight = 2 x Atomic number. So, the molar mass of oxygen will be 8 x 2 = 16.

Now, Grand total of the Molar Masses of each atoms present in water molecule.

Hydrogen Molar Mass (H2) = 2

Oxygen Molar Mass (O) = 16

Total= 16+2 = 18

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Answer 2

Answer:

molar mass :- 18.016 g/mol

Explanation:

molar mass of H2O =

mass of H × 2 + mass of O

= 1.008 × 2 + 16.0

= 2.016 + 16.0

= 18.016 g/mol