Question #a4b0a

1 Answer
Martin C.
Jan 30, 2018

m=810g

Explanation:

Reaction:
#O_2+2H_2rArrcolor(red)(2)H_2O#
If we got 22.5 moles of oxygen, we will have the doppel amount of water molecules, because of the #color(red)(2)#.
#n_(H_2O)=22.5 mol*2=45mol#
#m=n*M#
#M_(H_2O)=18g/(mol)#
#m_(H_2O)=45cancel(mol)*18g/(cancel(mol))=810g#

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