A gas has a volume of 38 L, a temperature of 55 C, and an unknown pressure. The volume of gas increased to 44 L and it temperature decreased to 25 C. If I measure the pressure after the change to be 6.0 atm, what was the original pressure ?

Solutions of sodium carbonate and silver nitrate react to form solid silver carbonate and a solution of sodium nitrate. a solution containing 3.50 g of sodium carbonate is mixed with one containing 5.00 g of silver nitrate. how many grams of sodium carbonate, silver nitrate, silver carbonate, and sodium nitrate are present after the reaction is complete?