How many molecules are there in 2.80 kg of hydrazine, #N_2H_2#?

1 Answer
anor277
Feb 4, 2017

#"Hydrazine is"# #N_2H_4#

Explanation:

#"Moles of hydrazine"# #=# #"Mass of hydrazine"/"Molar mass of hydrazine"#

#=(2.8xx10^3*g)/(32.05*g*mol^-1)~=87*mol.#

And if there are #87*mol#, there are #87*molxxN_A#, where #N_A="the avocado number"=6.022xx10^23*mol^-1#,

And #87*molxxN_A=5.26xx10^25# individual hydrazine molecules.

#N_2H_2# is #"diazene"#, which can exist in two isomeric forms. Why?

Related questions
See all questions in The Mole
Impact of this question
5723 views around the world
You can reuse this answer
Creative Commons License