Water can be made with the heavier isotopes of hydrogen: deuterium, ²₁H (D), and tritium, ³₁H (T).
Contributed by StemPy LabTry it on paper first. A hint, the key idea and the worked solution are here when you need them.
Water can be made with the heavier isotopes of hydrogen: deuterium, (D), and tritium, (T). Use .
- Find the molecular mass of semi-heavy water, , which has one ordinary hydrogen atom and one deuterium atom.
- Find the molecular mass of .
- By what percentage is heavier than ordinary water, ?
Need a reminder? The key ideaShow
Isotopes are atoms of the same element, with the same and a different . They have the same electrons, so the same chemical properties. Isobars are atoms of different elements with the same and a different . The mass of a molecule is the sum of the masses of its atoms.
The worked solution
Have you tried it?
Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, go through the solution one step at a time, and check each step against your own.
Step 1. (a) .
Step 2. (b) .
Step 3. (c) .
Answer: (a) . (b) . (c) about heavier. It reacts in the same way, because the isotopes have the same electrons.
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