Chemistry Questions! Plz help!!

questions_chem.docx

Hydration of NaOH:

· Mass of calorimeter = 5.86243g

· Mass of calorimeter + water = 53.5856g

· Mass of calorimeter + water + NaOH = 58.3960 g

· Mass of NaOH = 4.8104 g

· Mass of solution = 52.53357g

· Ti= 19.1o c ; Tf=46.235oc

Find the followings: (show all steps)

· Heat absorbed by the solution (kJ) =?

· ΔHsoln (kj) =?

· Moles of NaOH =?

· Molar enthalpy of solution (kj.mol-1) =?

Neutralization of NaOH:

· Concentration of HCl used = 0.2 M

· Volume of HCl used = 45 ml

· Ti of HCl/ NaOH before mixing = 18.9oC ; Tf= 31.736oC

· Mass of calorimeter + solution after cooling= 109.4387 g

· Mass of solution= 103.57627 Find the followings: (show all steps)

· Heat released by neutralization=?

· Moles of HCL=?

· Limiting reagent=?

· Molar enthalpy of neutralization (kJ.mol-1)