When a 4.18 g sample of solid sodium hydroxide was dissolved in a calorimeter in 120.0 g of water, the temperature rose from 6.5 oC to 47.4 oC . Calculate ΔH (in kJ/mol NaOH ) for the following solution process: NaOH(s)→Na+(aq)+OH−(aq) ____kj/mol

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