Introductory Chemistry: A Foundation
9th Edition
ISBN:9781337399425
Author:Steven S. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Donald J. DeCoste
Chapter13: Gases
Section: Chapter Questions
Problem 132AP
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Question
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Transcribed Image Text:CHM 1025L: Data Sheet for Generating
Mass of magnesium
Volume of hydrogen gas in cylinder
Temperature of hydrogen gas
Barometric pressure
Vapor Pressure of water (see Table 1)
of "dry" hydrogen gas
Trial 1
0.0859
073.2ml
29812
761 km
24mmbla
Trial 2
0.0665
62.0ml
29512
762 tour
20 mm Hg
Transcribed Image Text:Show the calculations for the actual volume of hydrogen gas collected, corrected to conditions of
STP for trials 1 and 2. You'll need to use the combined gas law formula.
Actual Volume of hydrogen gas at STP
120 ton
Trial 1
Show the calculations for the percent yield of hydrogen gas at STP for trials 1 and 2:
1/0 yield of Hydrogen = Actual vL of H₂
Percent Yield of hydrogen gas at STP
Trial 2
Trial 1
134
Trial 2
In the following space provided, comment on possible sources of error in your experiment
if you didn't get 100 % yield in either trial.
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Step 1: Balanced equation and given data
VIEWStep 2: Theoretical volume of hydrogen (at STP) (Trial-1)
VIEWStep 3: Volume of hydrogen under given conditions (Experimental)
VIEWStep 4: Percent Yield of hydrogen gas
VIEWStep 5: Theoretical volume of hydrogen (at STP) (Trial-2)
VIEWStep 6: Volume of hydrogen under given conditions (Experimental)
VIEWStep 7: Percent yield
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