Honors Physics Problem and Advanced Chemistry Problem

A water molecule contains two atoms of Hydrogen (H) and one atom of Oxygen (O). (H2O)

How many different water molecules (isotopically different) can be formed using the natural abundances for the isotopes of Hydrogen (H, D, T), and Oxygen (15O, 16O, 17O, 18O)?

Calculate the statistical concentrations for each isotopically unique molecule? Current status of question: Zero correct answers. (one partially correct answer).


In total, 24 isotopically different water molecules can be formed using the given isotopes for Hydrogen and Oxygen. To calculate the statistical probability for each isotopically unique molecule would requires knowledge as to the natural abundance of each unique isotope of Hydrogen and Oxygen.
To Kristine B. A Reasonable answer. Here is some other information. Radiosotope data Further data for naturally occuring isotopes of oxygen are listed above. This table gives information about some radiosotopes of oxygen, their masses, their half-lives, their modes of decay, their nuclear spins, and their nuclear magnetic moments. Isotope Mass Half-life Mode of decay Nuclear spin Nuclear magnetic moment 14O 14.008595 70.60 s EC to 14N 0 15O 15.003065 122.2 s EC to 15N 1/2 0.719 16O 17O 18O 19O 19.003577 26.9 s ß- to 19F 5/2 20O 20.004076 13.5 s ß- to 20F 0 21O 21.008730 3.4 s ß- to 21F 22O 22.0101 2.2 s ß- to 22F Hope this improves your understanding. Dr. Bob


Robert D.

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