Usning Hess's law, calculate the heat of neutralization for limewater,...

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sillypenelope

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...Ca(OH)2(aq) and hydrochloric acid, HCL.? Calculate the heat of neutralization for limewater, Ca(OH)2(aq), and hydrochloric acid, HCl

Ca(OH)2(aq) + 2HCl(aq) = CaCl2(aq) + 2H20(l)

Using Hess's Law and the three thermochemical equations below. Please explain.

1) CaO(s) +2HCl(aq) = CaCl2(aq) + H2O(l) change in H = -186 kJ

2) CaO(s) + H2O(l) = Ca(OH)2(s) change in H= -62kJ

3) Ca(OH)2(s) water = Ca(OH)2(aq) change in H = -13kJ

Please help!
 
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