A reaction between liquid reactants takes place at −9.0°C in a sealed, evacuated vessel with a measured volume of 30.0L. Measurements show that the reaction produced 28.g of carbon dioxide gas. Calculate the pressure of carbon dioxide gas in the reaction vessel after the reaction. You may ignore the volume of the liquid reactants. Be sure your answer has the correct number of significant digits.

a) 3 atm
b) 4 atm
c) 5 atm
d) 6 atm