the volume of a gas increased from 170 mL to 360 mL when heated. if the orginal temperature of the gas was 293 k, what is the new temperature in kelvin if the pressure and # of molecules remain constant

Astudent carefully transfers 30 g of water and 30 g of alcohol in a glass tube, forming two layers and filling the tube completely. after sealing the tube, the student mixes the solutions, and notices a bubble that forms in the tube. what is the mass of the contents in the glass tube after mixing?