
Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Calculations for experimentally determining R
Trial 1 | Trial 2 | |
Mass of Mg ribbon (g) | 0.033 | 0.039 |
Temperature of H2(g) (°C) | 23.5 | 23.7 |
Volume of H2 collected (mL) | 33.80 | 38.97 |
Atmospheric pressure (torr) | 758 | 758 |
Vapor pressure of water (torr) | ||
Volume of H2 gas in liters (L) | ||
Temperature of H2 gas in Kelvin (K) | ||
Moles of H2 gas (mol) | ||
Pressure of H2 gas in atmospheres (atm) | ||
Experimental value of R (L·atm/(mol·K)) |
Average value of R (L·atm/(mol·K)):
Percent error (%)Use 0.08206 L·atm/(mol·K) for the theoretical value of R:
The hydrogen generated in this lab was a product of the reaction between magnesium and hydrochloric acid. Which of these reactants is the limiting reactant?: Magnesium or Hydrochloric Acid? Explain reasonsing.
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