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When 2.50 g of Ba(s) is added to 100.00 g of water in a container open...

When 2.50 g of Ba(s) is added to 100.00 g of water in a container open to the atmosphere, the reaction shown below occurs and the temperature of the resulting solution rises from 22.00°C to 40.32°C. If the specific heat of the solution is 4.18 J/(g • °C), calculate ΔH for the reaction, as written. Ba(s) + 2 H2O(l) → Ba(OH)2(aq) + H2(g) ΔH = ?

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