Sodium metal reacts with water to produce hydrogen gas and sodium hydroxide according to the chemical equation shown below.When 0.030 mol of Na is added to 100.00 g of water,the temperature of the resulting solution rises from 25.00°C to 37.90°C.If the specific heat of the solution is 4.18 J/(g ∙ °C) ,calculate ΔH for the reaction,as written. 2 Na(s) + 2 H2O(l) → 2 NaOH(aq) + H2(g) ΔH = ?
A) -5.41 kJ
B) -90.0 kJ
C) -180 kJ
D) -360 kJ
Correct Answer:
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