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Grams Unknown, Mols Known

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For the reaction 2NA + 2H2O yields 2NAOH + H2, how many grams of sodium hydroxide are produced from 3.0 mol of water? 40. g, 80. g, 120 g, or 240 g.

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2 moles of water produce 2 moles of NaOH according to the ...

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