RUN 1
given:
1st cup – 50mL of 2M HCl
beaker – 50ml of 2M NaOH

Found in lab:

Mass of empty cup: 2.0g
Mass of cup & mixture: 105.2g
Mass of mixture: 103.2g
initial temp of 1st reagent 22.1 degrees Celsius
final temp of mixture: 34.2 degrees Celsius
temp change:12.1 degrees Celsius

Find:
1) Total heat evolved in reaction
2)# of moles of H20 formed
3)Molar heat of neutralization
4)Molar heat of neutralization from Hess’s law and book data
5)Percentage difference between experimental and calculated values

Run 2: given:
1st cup – 50mL of: 2M HNO3
beaker – 50mL of 2M NaOH

Mass of empty cup: 2.0g
cup & mixture: 106.7g
mixture: 104.7g
initial temp of 1st reagent: 22.2 degrees celsius
final temp of mixture:34.2 degrees celsius
temp change 12.0

find answers to above questions 1-5

RUN 3:
given:
1st cup – 50mL of 1M HCl
beaker – 50mL of 2M NaOH

mass of cup: 2.0g
cup & mixture: 105.4g
mixture: 103.4g
intial temp: 22.2 deg cels
final temp: 26 deg cels
temp change 3.8 deg cels

Find answers 1 – 5