4) A 8.15 g sample containing hydrogen peroxide (H2O2) decomposes to form water and oxygen. Thetemperature and pressures conditions in the lab were 21.2oC and 761.4 torr, respectively. The oxygengas is collected over a sample of water at 21.2oC; the vapor pressure of water at that temperature is18.9 torr. When the water level inside and outside of the tube is equal the volume of of gas is recordedas 176.23 mL.a) Write and balance the equation for the decomposition reaction b) What is the partial pressure of the oxygen gas? c) Assuming no deviation from ideality, how many moles of oxygen gas were produced? d) What was the mass of hydrogen peroxide that reacted? e) What is the percent by mass of the hydrogen peroxide from the original sample?
4) A 8.15 g sample containing hydrogen peroxide (H2O2) decomposes to form water and oxygen. Thetemperature and pressures conditions in the lab were 21.2oC and 761.4 torr, respectively. The oxygengas is collected over a sample of water at 21.2oC; the vapor pressure of water at that temperature is18.9 torr. When the water level inside and outside of the tube is equal the volume of of gas is recordedas 176.23 mL.a) Write and balance the equation for the decomposition reaction b) What is the partial pressure of the oxygen gas? c) Assuming no deviation from ideality, how many moles of oxygen gas were produced? d) What was the mass of hydrogen peroxide that reacted? e) What is the percent by mass of the hydrogen peroxide from the original sample?
Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter10: Gases And Their Properties
Section: Chapter Questions
Problem 93GQ
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4) A 8.15 g sample containing hydrogen peroxide (H2O2) decomposes to form water and oxygen. The
temperature and pressures conditions in the lab were 21.2oC and 761.4 torr, respectively. The oxygen
gas is collected over a sample of water at 21.2oC; the vapor pressure of water at that temperature is
18.9 torr. When the water level inside and outside of the tube is equal the volume of of gas is recorded
as 176.23 mL.
a) Write and balance the equation for the decomposition reaction
b) What is the partial pressure of the oxygen gas?
c) Assuming no deviation from ideality, how many moles of oxygen gas were produced?
d) What was the mass of hydrogen peroxide that reacted?
e) What is the percent by mass of the hydrogen peroxide from the original sample?
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