1 Answer

Weihui Guo · Answer 1 · 2016-12-07T03:58:09+0000

To answer this, you need to know the molar mass of water

H = 1.0 g/mol
O = 16.0 g/mol
H2O (water) = 18.0 g/mol

Just multiply the molar mass by the number of moles to get the mass in grams:

$(3.5mol\ H_2O)((18.0g)/(mol))=63.0g\ H_2O$

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