Question

A 4.40g piece of solid CO2 (dry ice) is allowed to sublime in a balloon. The final volume of the balloon is 1.00 L at 300 K. What is the pressure of the gas

Answer 1

2.46 atm

Step-by-step explanation:

We are going to use ideal gas law PV = n RT

find n mole weight of CO2 = 12.011 + 2 * 15.999 = ~ 44 gm/mole

SO 4.4 gm / 44 gm/mole = .1 mole (this is 'n' )

R = gas constant = .082057366 L-atm/k-mol

T must be in Kelvin = 300

PV = nRT

P * 1 = .1 * .082057366 * 300

P = 2.46 atm