What observed rotation is expected when a 1.78 m solution of (r)-2-butanol is mixed with an equal volume of a 0.890 m solution of racemic 2-butanol, and the resulting solution is analyzed in a sample container that is 1 dm long? the specific rotation of (r)-2-butanol is –13.9 degrees ml g–1 dm–1.

yes it is balanced

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.