Chemical reaction Essay Example for Free

Chemical reaction Essay 1.Determine the enthalpy change for NaOH (s) + HCl (aq) → NaCl (aq) + H2O (l) using Hesss Law. a. Write the balanced chemical reaction and enthalpy change for Part I (1pt) b. Write the balanced chemical reaction and enthalpy change for Part II (1pt) c. Calculate the enthalpy change using Hesss Law. Refer to the lesson for an example of Hesss Law. (2pt) 2.If the accepted enthalpy change value for the dissolving of sodium hydroxide in water is −44.2 kilojoules per mole, determine the percent error of the experimental value that you calculated in Part I. Show your work. (experimental actual value) / actual value Ãâ€" 100 % 3.If the accepted heat of reaction for the neutralization of hydrochloric acid with sodium hydroxide is −56.0 kilojoules per mole, determine the percent error of the experimental value that you calculated in Part II. Show your work. (experimental actual value) / actual value Ãâ€" 100 % 4.Using the accepted values of the processes youve examined, would your estimation of the enthalpy change for the reaction of solid sodium hydroxide in aqueous hydrochloric acid change from the prediction you made in question one? Explain your answer in complete sentences. 5.Give a detailed explanation, using what you know about bonds and forces of attraction, for the enthalpy changes you observed in parts I and II of this lab. Explain your answer in complete sentences.