Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right). This makes it easy to isolate and measure the amount of gas produced. Suppose the O₂ gas evolved by a certain chemical reaction taking place at 30.0 °C is collected over water, using an apparatus something like that in the sketch, and the final volume of gas in the collection tube is measured to be 74.6 mL. 45 Sketch of a gas-collection apparatus collected gas water chemical reaction. Calculate the mass of O₂ that is in the collection tube. Round your answer to 2 significant digits. You can make any normal and reasonable assumption about the reaction conditions and the nature of the gases.
Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right). This makes it easy to isolate and measure the amount of gas produced. Suppose the O₂ gas evolved by a certain chemical reaction taking place at 30.0 °C is collected over water, using an apparatus something like that in the sketch, and the final volume of gas in the collection tube is measured to be 74.6 mL. 45 Sketch of a gas-collection apparatus collected gas water chemical reaction. Calculate the mass of O₂ that is in the collection tube. Round your answer to 2 significant digits. You can make any normal and reasonable assumption about the reaction conditions and the nature of the gases.
Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter5: Gases
Section: Chapter Questions
Problem 5.98PAE
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Question
![Sometimes in lab we collect the gas formed by a chemical reaction over water
(see sketch at right). This makes it easy to isolate and measure the amount of
gas produced.
Suppose the O₂ gas evolved by a certain chemical reaction taking place at
30.0 °C is collected over water, using an apparatus something like that in the
sketch, and the final volume of gas in the collection tube is measured to be
74.6 mL.
U
Sketch of a gas-collection apparatus
collected
gas
water
chemical
reaction
Calculate the mass of O₂ that is in the collection tube. Round your answer to 2 significant digits. You can make any normal
and reasonable assumption about the reaction conditions and the nature of the gases.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5eb09660-693f-4b0a-9c98-8e645b8ba753%2F7e525ddc-947b-4b5f-8e44-b800ff55350c%2Fiu9h248_processed.png&w=3840&q=75)
Transcribed Image Text:Sometimes in lab we collect the gas formed by a chemical reaction over water
(see sketch at right). This makes it easy to isolate and measure the amount of
gas produced.
Suppose the O₂ gas evolved by a certain chemical reaction taking place at
30.0 °C is collected over water, using an apparatus something like that in the
sketch, and the final volume of gas in the collection tube is measured to be
74.6 mL.
U
Sketch of a gas-collection apparatus
collected
gas
water
chemical
reaction
Calculate the mass of O₂ that is in the collection tube. Round your answer to 2 significant digits. You can make any normal
and reasonable assumption about the reaction conditions and the nature of the gases.
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