How many moles of mercury(II) oxide, HgO, are needed to produce 125 g of oxygen, O2? 4. How many moles of mercury are produced?​

Laughing gas (nitrous oxide, N2O) is sometimes used as an anesthetic in dentistry. It is produced when ammonium nitrate is decomposed according to the following reaction.

NH4NO3(s) ---> N2O(g) + H2O(l)

5. How many grams of NH4NO3 are required to produce 33.0 g N2O?

6. How many grams of water are produced in this reaction?

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