How much additional water must be added to 30.0 mL of a 12 M HCl solution to make a 0.35 M HCl solution?

answer; i believe the correct answer is (solid gold);

the link still does not work even when adding it to the url bar

explanation:

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.