Answer to Question #169574 in General Chemistry for Tina

Question

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

NH4NO3(s) —> N2O(g) + 2H2O(l)

hkw many grams of NH4NO3 are required to produce 33.0 g N2O? Show your work.

Answer 1

Molar mass of N2O = 44 g/m

So, 33.0 g N2O = 33g/(44 g/mol)

              = (3/4) mol

               

NH4NO3(s) —> N2O(g) + 2H2O(l)

From above balanced equation,

To produce 1 mole of N2O required 1 mole of NH4NO3 .

    So, (3/4) moles of N2O required (3/4) moles of NH4NO3

Molar mass of NH4NO3 = 80 g/mol

So, (3/4) moles of NH4NO3

    = (3/4)×80 grams

    = 60 grams

     

Hence, 60 grams of NH4NO3 are required to produce 33.0 g N2O.