Lab 2

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Lab2HeatofCombustion-MgsampleDatafortheclass.doc

Chem 162 Lab 2: Heat of Combustion- Mg Sample Data for the class

1) Sample Data Group 1:

Reaction 1 (MgO)

Reaction 2 (Mg)

1. Volume of 1.00 M HCl

100 ml

100 ml

2. Initial Temp.; T1

17.8⁰C

23.8⁰C

3. Final temp.; T2

26.9⁰C

37.4⁰C

4. Change ion Temp. ∆T

5. Mass of solid

1.06 g

0.6 g

6. Heat, ‘q’

7. ∆H (= -q)

8. Moles

9. ∆H/mol

2) Sample Data Group 2:

Reaction 1 (MgO)

Reaction 2 (Mg)

1. Volume of 1.00 M HCl

101 ml

100 ml

2. Initial Temp.; T1

21.4⁰C

21.3⁰C

3. Final temp.; T2

28.8⁰C

32.2⁰C

4. Change ion Temp. ∆T

5. Mass of solid

0.996 g

0.244 g

6. Heat, ‘q’

7. ∆H (= -q)

8. Moles

9. ∆H/mol