(Last question, please help)
A constant pressure and temperature reaction vessel is capable of expanding and contracting as the moles of gas inside changes. The reaction vessel is to be used to measure the amount of carbon dioxide produced when sodium carbonate decomposes. An unknown mass of sodium carbonate is placed in the vessel. Adding 0.030 mole of nitrogen fills the reaction vessel to a volume of 250 mL. The sodium carbonate is completely decomposed, and the vessel expands to a final volume of 1.50 L. What mass of sodium carbonate was placed in the vessel before it was sealed?
(dont answer)
I already found out how to do it
sorry im dumb