Asked by ceasar3

2. (a) Given the following equations and H0rxn at 250C
H3BO3(aq) ¨ HBO2(aq) + H2O(l) ∆H0rxn = -0.02kJ
H2B4 O7(s) + H2O(l) ¨ 4HBO2(aq) ∆H0rxn = -11.3kJ
H2B4O7(s) ¨ 2B2O3(s) + H2O(l) ∆H0rxn = +17.5kJ
(i) Calculate ∆H0rxn for the reaction 2H3BO3(aq) ¨ 2B2O3(s) + H2O(l)
(ii) How does your calculation above illustrate Hessfs law of heat summation?

Answers

Answered by DrBob222
See your previous post. All of these are done the same way more or less.
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