Visit httpscheckinicsuciedu Log in and select Chem 1A When prompted type the word of the day gas Ensure when asked if you will share your location you select allow ID: 544655
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Slide1
Ideal Gas LawSlide2
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/
Log in and select Chem 1A. When prompted, type the word of the day: gasEnsure when asked if you will share your location you select “allow”. Visit: https://learningcatalytics.com/Sign in MasteringChemistry account name When prompted, type session ID:16790868
Please turn off all downloads. You can usually pause them by clicking on them and clicking pause. Facebook and youtube are officially banned during class time (this is not me micromanaging, it’s a legit internet issue as told to me by OIT).
Remember back 5 rows of even side are no seating zones
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Word of the day:
gas
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: session
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16790868Slide3
Quiz Question 1
When filling into the ideal gas law PV=
nRT
. (not in ratio form) Which of following is true:For R use 8.314 For R use 0.0821
The units for temperature must be in Celsius.
The units for volume must be in LThe units for pressure must be in atm
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Word of the day:
gas
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: session
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16790868Slide4
Quiz Question 2
When using the ratio form (shown below) of the ideal gas law what is true about the units.
You MUST use L for volume and
atm for pressure. For n you can use number of atoms/molecules or molsFor temperature you can use Celsius or Kelvin.For temperature you must always use Kelvin.
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Word of the day:
gas
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16790868Slide5
Ideal Gas Law
What volume does 12.5g of argon gas at a pressure of 1.05
atm
and a temperature of 322K occupy? Would the volume be different if the sample were 12.5 g of helium (under identical conditions)?
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Word of the day:
gas
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16790868Slide6
Ideal Gas Laws
A sample of gas has an initial volume of 5.6 L at a pressure of 735 mmHg. If the volume of the gas is increased to 9.4 L, what is the pressure?
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Word of the day:
gas
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16790868Slide7
Ideal Gas Law
A 250. mL aerosol can at 25 C and 1.10
atm
was thrown into an incinerator. When the temperature in the can reached 712 C, it exploded. What was the pressure in the can just before it exploded, assuming it reached the maximum pressure possible at that temperature (aka, assuming its an ideal gas)?
P
2
=1.10atm*(712+273)/298=3.63atm
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Word of the day:
gas
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Ideal Gas Laws
An automobile tire has a maximum rating of 38.0 psi (gauge rating). The tire is inflated while cold to a volume of 11.8 L and a gauge pressure of 36.0 psi (gauge rating) at a temperature of 12.0
o
C. When the car is driven on a hot day, the tire warms up to 65.0 oC, and its volume expands to 12.2 L. Does the pressure in the tire exceed its maximum rating? *note gauge rating is the difference between the total pressure and atmospheric pressure. Assume the atmospheric pressure on these days is 14.7 psi.
Yes it
exceeded it.
Note use this for help
with 11.48 homework