How long does Hydrogen last in water? How long does Hydrogen last in water?

How long does Hydrogen last in water?

In an open glass of water 50% of the Hydrogen will be left after about 5 to 8 hrs. In about 10 to 15 hours most, if not all of it will have dissipated into the air. 

In an enclosed bottle or jug with no air inside, the hydrogen can last for up to 10 days. There will be a bit of hydrogen loss everyday. If someone were to start drinking from the bottle, leaving air in the container then the hydrogen would start dissipating into the air.

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