The volume of a sample of dry air is held constant 50 L while the temperature is decreased from 100°C to 7.0°C. The original pressure of the sample is 960 mmHg. Which the following is closest to the final pressure of the sample?​

You are attempting to recrystallize a crude product mixture. you add the appropriate amount of hot solvent and are allowing the solution to slowly cool to room temperature. however, at room temperature no crystals have appeared, which of the following methods should be used to induce crystallization? choose all correct answers. a) place the flask in an ice bath. b) swirl the contents of the flask. c) add a small seed crystal of the desired product. d) scratch the inside of the glassware using a stir rod. it can be multiple choices