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Arghaya Dalapati
I2
Conclusion
The purpose of Part A of the experiment was to determine the ideal gas constant
R, .08206 L atm/mol K, through experimentation. There were .025 grams (
9.20E04 moles)
were reacted with NaOH in a burette to generate hydrogen gas, which will be reacted to generate the gas
constant R.
When the experiment was first started the Initial Volume of the burette was 45.70 mL, and
after experimentation the Final Volume was 11.80 mL, thus .034 Liters.
From basic stoichiometry, it was
founded that from 9.20E04 moles of Aluminum, 1.38E03 Moles of Hydrogen were created.
The room
pressure was found to be 29.03 inHG, which convered to .97 atm.
The room pressure is unquie since it
contains all the partial pressure of hydrogen gas, air and water vapor.
The partial pressure of Air can be
assumed negligible since it is so small, but the partial pressure of water vapor has to be considered.
The
room temperature was founded to be 20.00 thus the pressure of water in ATM was determined to be .02.
Thus the “real” or “corrected” pressure of is equal to .950, which is equal to the total room pressure minus
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 Spring '10
 WILLIAMS
 Mole

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