Answer:
B. 24.5
Step-by-step explanation:
To find the volume of CO₂, you need to use the Ideal Gas Law:
PV = nRT
In this equation,
-----> P = pressure (atm)
-----> V = volume (L)
-----> n = number of moles
-----> R = Ideal Gas Constant (0.0821 L*atm/mol*K)
-----> T = temperature (K)
Before you can solve for "V", you need to...
(1) convert the pressure from mmHg to atm (760 mmHg = 1 atm)
(2) convert the temperature from Celsius to Kelvin (°C + 273 = K)
P = 1,140 mmHg / 760 = 1.500 atm R = 0.0821 L*atm/mol*K
V = ? L T = 25.0°C + 273 = 298 K
n = 1.50 moles
PV = nRT <----- Ideal Gas Law Equation
(1.500 atm)V = (1.50 moles)(0.0821 L*atm/mol*K)(298 K) <----- Insert values
(1.500 atm)V = 36.6987 L*atm <----- Multiply right side
V = 24.5 L <----- Divide both sides by 1.500 atm