calculate the average molar volume of H2 at STP.

Chemistry: An Atoms First Approach
2nd Edition
ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
Publisher:Steven S. Zumdahl, Susan A. Zumdahl
Chapter8: Gases
Section: Chapter Questions
Problem 89E
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2HCl(aq)+ Mg(s) —> MgCl2 (aq) + H2(g)
a. Use the moles of magnesium (0.00141 moles) to calculate the moles of H2 that
should have been produced.
b. Calculate the molar volume (in L/mol) of H2 gas at STP using your calculated volume
at STP (32.82 mL) and the stoichiometric moles of H2.
c. Between the two trials, calculate the average molar volume of H2 at STP.
d. Use your average value to calculate the percent error.
laccepted-exp'erimentail
x 100 = % error
accepted
Transcribed Image Text:a. Use the moles of magnesium (0.00141 moles) to calculate the moles of H2 that should have been produced. b. Calculate the molar volume (in L/mol) of H2 gas at STP using your calculated volume at STP (32.82 mL) and the stoichiometric moles of H2. c. Between the two trials, calculate the average molar volume of H2 at STP. d. Use your average value to calculate the percent error. laccepted-exp'erimentail x 100 = % error accepted
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