A 1.00 L flask is filled with 1.00 g of argon at 25 °C. A sample ofethane vapor is added to the same flask until the total pressure is1.000 atmPart AWhat is the partial pressure of argon, PAr, in the flask?Express your answer to three significant figures and include the appropriate units.View Available Hint(s)PAT0.612 atmSubmitPrevious AnswersCorrectBefore ethane was added, the percent by volume of argon in the flask was 100% anpressure of the flask. The total volume of the flask, the temperature of the flask, andtherefore the partial pressure of argon is the same before and after ethane was addepartial pressures of both argon and ethane.Part BWhat is the partial pressure of ethane, Pethane, in the flask?Express your answer to three significant figures and include the appropriate units.View Available Hint(s)?HA0.638atmPethane =

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Asked Nov 1, 2019
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please answer part B

A 1.00 L flask is filled with 1.00 g of argon at 25 °C. A sample of
ethane vapor is added to the same flask until the total pressure is
1.000 atm
Part A
What is the partial pressure of argon, PAr, in the flask?
Express your answer to three significant figures and include the appropriate units.
View Available Hint(s)
PAT
0.612 atm
Submit
Previous Answers
Correct
Before ethane was added, the percent by volume of argon in the flask was 100% an
pressure of the flask. The total volume of the flask, the temperature of the flask, and
therefore the partial pressure of argon is the same before and after ethane was adde
partial pressures of both argon and ethane.
Part B
What is the partial pressure of ethane, Pethane, in the flask?
Express your answer to three significant figures and include the appropriate units.
View Available Hint(s)
?
HA
0.638
atm
Pethane =
help_outline

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A 1.00 L flask is filled with 1.00 g of argon at 25 °C. A sample of ethane vapor is added to the same flask until the total pressure is 1.000 atm Part A What is the partial pressure of argon, PAr, in the flask? Express your answer to three significant figures and include the appropriate units. View Available Hint(s) PAT 0.612 atm Submit Previous Answers Correct Before ethane was added, the percent by volume of argon in the flask was 100% an pressure of the flask. The total volume of the flask, the temperature of the flask, and therefore the partial pressure of argon is the same before and after ethane was adde partial pressures of both argon and ethane. Part B What is the partial pressure of ethane, Pethane, in the flask? Express your answer to three significant figures and include the appropriate units. View Available Hint(s) ? HA 0.638 atm Pethane =

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Step 1

Part B)    A 1.0 Litre of flask is filled with 1.0 g of argon at 25°C. A sample of ethane vapour is added to the same flask until the total pressure is 1.000 atm.

Pargon = 0.612 atm (from part A)

The partial pressure of ethane gas in the flask is to be determined.

Step 2

Dalton’s Law – It states that the total pressure of mixture of gases is equal to sum of the partial pressure of each component gas.

Thus,

PTotal = Pgas 1 + Pgas 2 + Pgas 3…..

Step 3

Now, in the given flask, two gases are mixed- argon and ethane and

PTotal = 1.000 atm

PArgon = 0.612 atm

Thus,...

P
PTotalPArgon
ethan
1.000 atm 0.612 atm +P
ethane
. P
=1.000 atm - 0.612 atm = 0.388 atm
ethane
help_outline

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P PTotalPArgon ethan 1.000 atm 0.612 atm +P ethane . P =1.000 atm - 0.612 atm = 0.388 atm ethane

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