An aqueous solution of hydroiodic acid is standardized by titration with a 0.185 M solution of calcium hydroxide. If 15.5 mL of base are required to neutralize 12.4 mL of the acid, what is the molarity of the hydroiodic acid solution?

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.

i think its 100.

hope this !

answerca air mass;