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Find Δ\Delta H \circ rxn for the Reaction 2Na(s)+2H2O(l)2NaOH(aq)+2H2( g) 2 \mathrm{Na}(\mathrm{s})+2 \mathrm{H}_{2} \mathrm{O}(\mathrm{l}) \rightarrow 2 \mathrm{NaOH}(\mathrm{aq})+2 \mathrm{H}_{2}(\mathrm{~g})

question 44

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Find Δ\Delta H \circ rxn for the reaction
2Na(s) +2H2O(l) 2NaOH(aq) +2H2( g) 2 \mathrm{Na}(\mathrm{s}) +2 \mathrm{H}_{2} \mathrm{O}(\mathrm{l}) \rightarrow 2 \mathrm{NaOH}(\mathrm{aq}) +2 \mathrm{H}_{2}(\mathrm{~g}) .
[ΔHf(NaOH(aq) ) =426.8 kJ/mol;ΔHf(H2O(l) ) =285.5 kJ/mol] \left[\Delta \mathrm{H}^{\circ}{ }_{\mathrm{f}}(\mathrm{NaOH}(\mathrm{aq}) ) =-426.8 \mathrm{~kJ} / \mathrm{mol} ; \Delta \mathrm{H}^{\circ}{ }_{\mathrm{f}}\left(\mathrm{H}_{2} \mathrm{O}(\mathrm{l}) \right) =-285.5 \mathrm{~kJ} / \mathrm{mol}\right]

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