Posted by Amanda on Wednesday, July 7, 2010 at 4:32pm.
Write the balanced equation.
2Na + 2H2O ==> 2NOH + H2.
Convert 5.98 g Na to moles. moles - grams/molar mass.
Using the coefficients in the balanced equation, convert moles Na to moles H2O. Now convert mols H2O to grams H2O. g = moles x molar mass.
Note: You may wish to confirm that 5.98 g Na actually produces 0.26 g H2 and 10.40 g NaOH to assure yourself that there are no limiting reagents here. I confirmed that first.
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