A gas takes up a volume of 17.0L, has a pressure of 2.3 atm, and a temperature of 299K. If I raise the temperature to 355K and lower the pressure to 1.5 atm, what is the new volume of the gas?

Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.

The vapor pressure of ethanol is 1.00 × 102 mmhg at 34.90°c. what is its vapor pressure at 61.61°c? (δhvap for ethanol is 39.3 kj/mol.)

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