Calculate the volume occupied by 12 g of Carbon dioxide at 20 degrees and 740 mm Hg

Answer 1

To calculate the volume of a gas using the ideal gas law equation, we can use the formula:

V = (nRT) / P

where:
V = volume of gas (in liters)
n = number of moles of gas
R = ideal gas constant (0.0821 L.atm/mol.K)
T = temperature in Kelvin
P = pressure of gas (in atm)

First, we need to calculate the number of moles of Carbon dioxide:
12 g / 44.01 g/mol = 0.272 moles

Next, we need to convert the temperature to Kelvin:
20 degrees Celsius = 20 + 273 = 293 K

Now, we can plug the values into the formula:

V = (0.272 mol * 0.0821 L.atm/mol.K * 293 K) / 0.973 atm
V = 6.5 L

Therefore, the volume occupied by 12 g of Carbon dioxide at 20 degrees and 740 mm Hg is 6.5 liters.