Experiment 8: Calorimetry (Enthalpy of Reaction)

Question 1

Purpose of Experiment 8

Answer 1

Use calorimetry to calculate the enthalpy of formation for Zinc

Question 2

Safety Procedures

Answer 2

Working with HCl solution, be very careful

Question 3

Procedure

Answer 3

1. Weigh some zinc and pour some HCL solution in to the calorimeter
2. Record temperature every 30 seconds
3. q(cal)=c(HCl)V(HCl)d(HCl)*deltaT(HCl)
4. -q(cal)=q(rxn)
5. moles of Zn = mass/molar mass of Zn
6. Change in enthalpy = q(rxn)/moles of Zn