2. What is the density of propene gas measured at 2.5 atm and 47 C?
See your next post up for the formula.
I still need an answer to this question or at least a little help in understanding on how to find the density of propane so I hope others will still answer this. "DrBob222" IS A JOKE.
But I'm not laughing and you shouldn't be. What is it you don't understand about
P*molar mass = density*RT? This is worked the same way and with the same formula your post right above was worked. I don't do your homework for you; I just HELP you do it. And I'm ready to explain anything you don't understand. All you must do is substitute the numbers and crunch them on your calculator. Good luck!
Rather than criticize, I actually have a legitimate question about the problem posted above. DrBob, the structural formula for propene is C3H6 if I am not mistaken. But what I don't understand is how to incorporate that into PV=nRT?
Actually, if I may revise, How do I find n?
To find the density of a gas, we can use the ideal gas law equation, which relates pressure (P), volume (V), temperature (T), and the gas constant (R).
The ideal gas law equation is given by:
PV = nRT
Where:
- P is the pressure of the gas (in atmospheres)
- V is the volume of the gas (in liters)
- n is the number of moles of the gas
- R is the ideal gas constant (0.0821 L.atm/mol.K)
- T is the temperature of the gas (in Kelvin)
In this case, we are given the pressure (2.5 atm) and the temperature (47 °C), and we need to determine the density.
To solve this problem, we can follow these steps:
Step 1: Convert the temperature from Celsius to Kelvin.
To convert Celsius to Kelvin, we use the equation:
T(K) = T(°C) + 273.15
In this case:
T(K) = 47 °C + 273.15 = 320.15 K
Step 2: Rearrange the ideal gas law equation to solve for density.
The ideal gas law equation can be rearranged as follows:
PV = nRT
P = (n/V) * RT
From this equation, we can see that (n/V) represents the molar density since n/V corresponds to the number of moles per unit volume.
Step 3: Calculate molar density.
To find the molar density, we need to determine (n/V) in the equation above.
However, we do not have information on the volume or the number of moles of propene gas. Therefore, we cannot directly calculate the molar density.
Additional information is required, such as the volume or the molar mass of the gas, to determine the molar density and, subsequently, the density of propene gas.
Without this additional information, it is not possible to calculate the density of propene gas at 2.5 atm and 47 °C.