Chemistry help

[Not Anyone To Care For]

How much pressure would be in a cylinder that has the radius of 5.8 centimeters and the length of 30.48 centimeters with around 8,699 liters of CO2 in it? I know some of you have to be chemistry/math wizzes

 

[Pyropyro]

My chem is being rusty but I hope this could help:

PV = nRT

P or pressure is to be solved for

So (v) volume is = (pi)(5.8)^2(30.48) (convert units to m^3)
R is just 8.315 J/mol K
T (temperature) = are you sure there's no given number? (unless of course we're talking stp)
n (number of moles) = 1 mole of any gas at stp is at 0.0224 m^3

so (1mole / 0.0224 m^3)(8.699m^3)

 

[Yellow]

If it's a problem to solve pressure, I don't get why temperature and moles aren't given. If we have to assume STP, then the pressure is going to be 760 mmHg.

Am I missing something? I haven't taught chem in like 7 years.

 

[Not Anyone To Care For]

Yeah sorry for not giving you guys enough information, I haven't taken a single chemistry class so you guys are going to have to bear with me but can you guys explain what STP is?

 

[Pyropyro]

Standard temp & pressure

 

[Not Anyone To Care For]

Standard temp & pressure

By pressure do you mean atmospheric pressure that is being applied to the outside of the cylinder?

 

[Yellow]

Standard Temperature and Pressure is a set of assumptions used for sciency reasons.

At STP, a liter of any gas contains 22.4 moles of the molecule
At STP, the temperature is 0 degrees Celsius/273.15K
At STP, the pressure is 1 ATM/760 mmHg/14.696psi (this is the pressure of the gas)

The formula used to determine any of those factors (moles, pressure of the gas, temp) or volume in the absence of STP conditions is PV = nRT

So, theoretically, to discover one, we need a way to determine to the other three. You really only gave us volume.

 

[Not Anyone To Care For]

Thanks for all of the useful information it helped me out lots. Many thanks