welathyasf
02.03.2020 •
Chemistry
A 10.2-L canister of oxygen gas contains 58.6 mol of gas at a temperature of 25°C. What is the pressure of the gas? Looking to see how to set the problem up.
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Ответ:
140.6 atm
Explanation:
Data Given:
Volume of Oxygen gas ( V )= 10.2 L
temperature of a gas ( T ) = 25 °C
Convert °C to K
T = °C + 273
T = 25 + 273 = 298 K
mol of oxygen gas (n) = 58.6
Pressure of a gas ( P ) =?
Solution:
Formula to be used
PV= nRT . . . . . . .(1)
As we have to find pressure so rearrange the above formula
P = nRT / V . . . . . . . . . . (2)
Where
n= number of moles
R is ideal gas constant
R = 0.0821 L atm mol⁻¹ K⁻¹
P = pressure
V = volume
T = temperature
Put values in equation 2
P = nRT / V
P = 58.6 mol x 0.0821 L atm mol⁻¹ K⁻¹ x 298 K / 10.2 L
P = 1434 L atm / 10.2 L
P = 140.6 atm
So the Pressure of oxygen gas (O₂) = 140.6 atm
Ответ:
it is the main content in sun !