An experiment tells us that the following reaction is first order with respect to He and third order with respect to NO.
2NO(g) + 2H2 (g) N2 (g)+ 2H20 (g)
We also know that the rate constant for this reaction is 6.00 x 105 1/M-sec at 1280 °C.
What is the instantaneous rate for this reaction at 1280 °C if the initial concentration of Hz is
1.65 M and the initial concentration of NO is 0.895 M?

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