Chemistry Lab

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CHM101LM6IdealGasLawConstantLabReport.docx

Determination of Ideal Gas Law Constant Student Name Date

Data

Activity 1

Data Table 1

Trial 1

(1 mL H2O2)

Trial 2

(1 mL H2O2)

Trial 3

(2 mL H2O2)

Trial 4

(2 mL H2O2)

Trial 5

(3 mL H2O2)

Trial 6

(3 mL H2O2)

Trial 7

(4 mL H2O2)

Trial 8

(4 mL H2O2)

Air temperature (°C)

Volume H2O2 liquid (mL)

Initial Volume Gas (mL)

Final Volume Gas (mL)

ΔV (mL)

Would the volume of oxygen that is generated be affected if a smaller mass of yeast were used? Why or why not?

Activity 2

Data Table 2

Concentration H2O2

(mol/L)

Trial 1

(1 mL H2O2)

Trial 2

(1 mL H2O2)

Trial 3

(2 mL H2O2)

Trial 4

(2 mL H2O2)

Trial 5

(3 mL H2O2)

Trial 6

(3 mL H2O2)

Trial 7

(4 mL H2O2)

Trial 8

(4 mL H2O2)

Moles H2O2

Moles O2

ΔV (L)

*Hint: Use stoichiometry to solve for moles of O2.

Air Temperature (K)

Air Pressure (atm)

Equation of the Line

Gas Constant R

Percent Error

Identify at least two potential sources of error in the experiment. Are any assumptions made that would add to the experimental error?