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30 May, 08:38

How many grams of naoh is produced from 1.20 x 102 grams of na2o?

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  1. 30 May, 08:45
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    Molecular mass of NaOH = 23.0+16.0+1.00 = 40.0

    Molecular mass of Na2O = 2*23.0 = 46.0

    Equation of reaction:

    Na2O + H2O = 2NaOH

    So 1 mole of Na2O will produce 2 moles of NaOH, or

    46 grams of Na2O will produce 2*40=80 grams of NaOH.

    1.20*10^2 grams = 120 grams

    Therefore

    120 grams of Na2O will produce

    120*80/46 = 208.7 grams of NaOH.

    Answer: 209 grams of NaOH will be produced (to 3 significant figures)
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