A gas tank containing an air mixture of helium, nitrogen and oxygen has a total pressure of 45.0 psi. Answer the following questions given that the partial pressures of helium and nitrogen in the mixture are 7.50 psi and 13.5 psi, respectively, and there are a total of 6.75 moles of gas mixture in the tank. Report all answers to 3 significant figures. a) What is the partial pressure of oxygen?

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Chapter1: Chemical Foundations
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A gas tank containing an air mixture of helium, nitrogen and oxygen has a total pressure of 45.0 psi. Answer the following questions given that the partial pressures of helium and nitrogen in the mixture are 7.50 psi and 13.5 psi, respectively, and there are a total of 6.75 moles of gas mixture in the tank. Report all answers to 3 significant figures.

a) What is the partial pressure of oxygen?

 

 
 
 

b) Calculate the moles of oxygen in the tank.

 

 
 
 

c) Calculate the moles of nitrogen in the tank.

 

 
 
 

d) Calculate the moles of helium in the tank.

 

 
 
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