# chemchemchem

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Using the equation 2H2 + O2 ==> 2H2O, determine how many grams of water is produced when 13 moles of oxygen is consumed.

• chemchemchem -

13 moles Oxygen produces 13 moles of H2O.
So, how many grams is that?

• chemchemchem -

13 X 18?
234?

• chemchemchem -

looks good to me.

• chemchemchem -

but my site says that's wrong..

• chemchemchem -

so, what doe sit say is correct? Maybe it'll give me a clue where I messed up.

• chemchemchem -

it doesn't. It just tells me to try again.

• chemchemchem -

Well, if they oxygen as O2, then they'd want 13 moles of O2, that's twice as much O. So, maybe they want 468g

• chemchemchem -

yes! thank you it worked!

• chemchemchem -

thad do you know how to do #13?

• chemchemchem -

234

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