The reaction of 0.440 g magnesium with 400 g (excess) hydrochloric acid solution causes the temperature of the solution to increase by 5.04 °C. Assume that the specific heat of the solution is the same as that of water, and Mg is the limiting reactant. Calculate the ΔH for the reaction as written:

Transcribed Image Text:

Mg(s) + 2HC1(aq) →MgCl₂(aq) + H₂(g)