Please help A 3.0 L container or argon has a pressure of 3.5 atm what volume would be necessary to increase the pressure to 557.15 kPa

Agas is contained in a thick walled balloon when the pressure changes from 1.21 atm to 2.52 the volume changes from 3.75 l to 1.72 l and the temperature change from 293k to blank k

Calculate the molarity of 48.0 ml of 6.00 m h2so4 diluted to 0.250 l .

Which of the following signs of a chemical reaction are observed in the reaction of potassium with water? precipitate formed temperature change smell produced gas produced color change