How many?
4am, Did they read “a mole” and misinterpret it as “molecule” when writing the headline?
porkins, That took me too long.
critical, At least twice as much!
thepianistfroggollum, Alright, I know where they went wrong here. There are more hydrogen atoms in a glass of water than stars in the universe.
There are about 1.58 x 10^25 hydrogen molecules in 8oz of water, and there are an estimated 10^22 - 10^24 stars in the universe.
Edit: super script markdown wasn’t working
Dave, 
Is it wrong? I’ll do some complex math, so feel free to ask follow up questions.
Hydrogen atoms in one molecule of water: 2
Stars in the entire solar system: 1
2 is larger than 1 [citation needed]
thepianistfroggollum, I’m sorry for your poor reading comprehension.
jballs, 
Is there a confidently incorrect community yet?
Kayel, Ignoring the joke.
A metric cup is 250 ml.
250 ml = 250 g (the density of water is intentionally 1.000 g / ml)
Water ~= 18 g/mol ( H 1.008 g/mol, O 16.something g/mol)
250 g / 18 g/mol = 13.8 mol
13.8 mol * 6 * 10^23 atoms/mol = 8.33 * 10^24 molecules of water
And there are two atoms of H in one molecule of water, so 1.66*10^25 atoms of hydrogen in a glass of water.
That’s a lot
EmoDuck, The craziness thing about all of this is that there is actually such a thing as “a metric cup”
ThrowawayPermanente, God damn it
EmoDuck, Bullshit.
Hydrogen atoms per water molecules: 2
Stars in the solar system: Sol, Neil Patrick Harris, Justin Timberlake, possibly even more…
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