Lab 4
Chem 162 Lab 4: Empirical Gas Laws (Part 3): The ideal gas Law Sample Data
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Group 1 |
Group 2 |
Group 3 |
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1. Mass of Magnesium (g) |
0.079 g |
0.073 g |
0.077 g |
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2. n= Moles of Magnesium (mol) |
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3. Volume of H2 collected (ml) |
86.2 ml |
78.2 ml |
80.2 ml |
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4. V= Volume of H2 collected (L) |
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5. Temperature (⁰C) |
20.0 ⁰C |
19.2 ⁰C |
20.9 ⁰C |
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6. T= Temperature (K) |
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7. Atmospheric pressure (mbar or mb)* |
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8. Vapor Pressure of water (Table 1- Page 5) |
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9. P= Pressure of H2 collected (atm) |
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(#7 *** Use the Bellevue College weather station: http://scidiv.bellevuecollege.edu)
% error = (Experimental-Theoretical)/Theoretical)
Mbar* (1bar/1000mbar) * (1.1013 atm/1 bar) = ___________ atm