# Can you call H_2 an Atom? [closed]

I am currently studying to complete the Chemistry CLEP exam, I ran into this question and was thoroughly confused by the phrase

12.04x10^23 atoms of H_2

According to the question, this corresponds to 12.04X10^23 molecules (2 moles) of H_2, or 24.08x10^23 atoms (4 moles) of Hydrogen. The use of the word "atom" over "molecule" seems useless, confusing, and possibly wrong.

I'm not sure if this question is written poorly or if I have made a mistake in my grammar either way, any help is appreciated. Thank you!

• No you cannot call them an atom, you are right to be confused. The most natural interpretation is a mistaken attempt to say x molecules of H2. – jezzo May 12 '20 at 21:22
• There is no doubt that the statement should have been $\pu{12.04 \times 10^{23}}$ molecules of $\ce{H_2}$ given that the given answer is $\pu{(E) 44.8 L}$. // PS - Since 1983 a mole of gas at STP occupies 22.711 Liters. – MaxW May 12 '20 at 22:22
• An online practice test which contained this question had more, um, questionable questions. E.g. asking which of Na, Zn, Hg, N, He "exists as a liquid in its elemental form". Well, they all do. The question fails to mention "STP". The singular "exists in its" is a giveaway, but we are taking a chemistry test, not linguistics. – Peter - Reinstate Monica May 13 '20 at 6:10

The question is indeed poorly worded. What the question seems to be saying is that there are $$12.04\times10^{23}$$ molecules of hydrogen gas/dihydrogen ($$\ce{H2}$$).
I'm also noting that the correct answer ends with "... $$\pu{44.8L}$$ of $$\ce{H2O}$$ present", while there was absolutely no mention of $$\ce{H2O}$$. The question is quite misleading.
• C'mon @Raphaël. You've been around long enough to know basic mhchem formatting! Please try to use $\LaTeX$ appropriately as much as possible. – William R. Ebenezer May 14 '20 at 16:45