Marker board review
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Marker Board Review. You should have a marker board, a marker, and a paper towel to erase! Ready??? GO!!!.

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Marker Board Review

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Marker board review

Marker Board Review

You should have a marker board, a marker, and a paper towel to erase!

Ready???

GO!!!


Marker board review

#1 - A balloon is filled with 3 gases: nitrogen, oxygen, and hydrogen. The total pressure of the gases is 8.51 atm. If the partial pressure of nitrogen is 3.84 atm, and the partial pressure of oxygen is 2.20 atm, calculate the partial pressure of hydrogen.


Answer

Answer:

Partial pressure of

hydrogen = 2.47 atm


Marker board review

#2 - A sample of gas is 7.89 L at 293 K. How many degrees must the temperature decrease to change the volume to 6.00 L?


Answer1

Answer:

70 K

It will change from 293 K to 223 K,

which is a difference of 70 K.


Marker board review

#3 - A piston filled with oxygen gas has a pressure of 240.0 mm Hg at 225 mL. If the pressure is decreased to 0.150 atm, what will be the new volume of the gas?


Answer2

Answer:

474 mL

Don’t forget to change P1 to atm!


Marker board review

#4 - A sample of gas at 150.0 K has a pressure of 900.0 mm Hg. It is cooled until the pressure reads 700.0 mm Hg.

What is the new temperature in both Kelvin and degrees Celsius?


Answer3

Answer:

116.7 K

and

-156.3oC


5 a 250 0 ml oxygen sample is measured at 25 0 o c and 720 0 mm hg how many moles is this

#5 - A 250.0 mL oxygen sample is measured at 25.0oC and 720.0 mm Hg. How many moles is this?


Answer4

Answer:

0.00968 moles O2


Marker board review

#6 – 560.0 mL of nitrogen are measured at 28.0oC and 1.50 atm. Calculate the volume under STP.


Answer5

Answer:

762 mL


Marker board review

#7 - Determine how many liters 8.80 g carbon dioxide gas would occupy at STP.


Answer6

Answer:

4.48 L


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