H3BO3 (aq) → HBO2 (aq) + H2O (l)              ΔH1 = - 0.02 kJ/mol  H2B4O7 (aq) + H2O (l) → 4HBO2 (aq)           ΔH2 = - 11.3 kJ/mol  H2B4O7 (aq) → 2B2O3 (s) + H2O (l)              ΔH3 = 17.5 kJ/mol  If 545 J of heat are absorbed or released from the reaction of 330. mL of H3BO3 solution, what was the molarity of the solution?

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H3BO3 (aq) → HBO2 (aq) + H2O (l)              ΔH1 = - 0.02 kJ/mol 

H2B4O(aq) + H2O (l) → 4HBO2 (aq)           ΔH2 = - 11.3 kJ/mol 

H2B4O7 (aq) → 2B2O3 (s) + H2O (l)              ΔH3 = 17.5 kJ/mol 

If 545 J of heat are absorbed or released from the reaction of 330. mL of H3BO3 solution, what was the molarity of the solution?

 

 
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