How many moles of chlorine gas and 120°C and 33.3 ATM would occupy a vessel of 12 L?

12.387 moles

Explanation:

We are given;

Temperature of chlorine, T = 120°C

But, K = °C + 273.15

Therefore, T = 393.15 K

Pressure, P = 33.3 Atm

Volume, V = 12 L

We are required to calculate the number of moles of chlorine gas,

To find the number of moles we are going to use the ideal gas equation;

PV = nRT

R is the ideal gas constant, 0.082057 L. atm/mol. K

Therefore, rearranging the formula;

n = PV:RT

Hence;

n = (33.3 atm * 12 L) : (0.082057 * 393.15 K)

= 12.387 moles

Therefore, the number of moles of chlorine are 12.387 moles