When a sample of ammonium nitrite, NH4NO2 is decomposed in a test tube, 511 mL of N2 gas is collected over water at 26.0°C and 745 torr total pressure. How many grams of NH4NO2 were decomposed? The vapor pressure of water at 26.0ºC is 25.5mmHg. NH4NO2(s) → N2(g) + 2H2O(g)

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