The water found on earth is almost entirely made up of the 1h and 16o isotopes for a formula of h2o and a molecular mass of 18.0 amu. what is the largest mass that a water molecule could have using other isotopes? express the mass numerically in atomic mass units.

Question

Chemistry

Isabell Weber

28 July, 22:42

The water found on earth is almost entirely made up of the 1h and 16o isotopes for a formula of h2o and a molecular mass of 18.0 amu. what is the largest mass that a water molecule could have using other isotopes? express the mass numerically in atomic mass units.

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Answers (1)

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Alisha Pollard · Answer 1

The most stable, naturally occurring and heaviest isotope of oxygen is 18O. Next, the heaviest naturally occurring isotope of hydrogen is 3H. If these isotopes were to combine to form water, the mass of the water would be:

3*2 + 18

24

The largest mass of water molecule that may exist is 24 amu.