A tank contains 10.5 g of chlorine gas (Cl2) at a temperature of 87 °C and an absolute pressure of 5.50 × 105 Pa. The mass per mole of Cl2 is 70.9 g/mol.

Question

(a) Determine the volume of the tank.

(b) Later, the temperature of the tank has dropped to 30 °C and, due to a leak, the pressure has dropped to 3.70 × 105 Pa. How many grams of chlorine gas have leaked out of the tank?

Answer 1

P V = n R T

p in Pascals
n in mols
T in kelvin (C+273)
v in cm^3
----> R = 8.31*10^6 http://www.katmarsoftware.com/gconvals.htm
here
n = 10.5/70.9
T = 273+87
P = 5.5 * 10^5
R = 8.31*10^6