The following balanced equation shows the formation of ethane (c2h6).
c2h2 + 2h2 mc022-1.jpg c2h6
how many moles of hydrogen are needed to produce 13.78 mol of ethane?
1) 3.445 mol
2) 6.890 mol
3) 27.56 mol
4) 55.12 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