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# Marker Board Review - PowerPoint PPT Presentation

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

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## PowerPoint Slideshow about ' Marker Board Review' - axel-walter

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

GO!!!

#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: 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

Partial pressure of

hydrogen = 2.47 atm

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

Answer: 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

70 K

It will change from 293 K to 223 K,

which is a difference of 70 K.

#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?

Answer: mm Hg at 225 mL. If the pressure is decreased to 0.150 atm, what will be the new volume of the gas?

474 mL

Don’t forget to change P1 to atm!

#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?

Answer: Hg. It is cooled until the pressure reads 700.0 mm Hg.

116.7 K

and

-156.3oC

#5 - A 250.0 mL oxygen sample is measured at 25.0 Hg. It is cooled until the pressure reads 700.0 mm Hg. oC and 720.0 mm Hg. How many moles is this?

Answer: Hg. It is cooled until the pressure reads 700.0 mm Hg.

0.00968 moles O2

#6 – 560.0 mL of nitrogen are measured at 28.0 Hg. It is cooled until the pressure reads 700.0 mm Hg. oC and 1.50 atm. Calculate the volume under STP.

Answer: Hg. It is cooled until the pressure reads 700.0 mm Hg.

762 mL