When ammonia, NH3, is produced in a school or college laboratory, it is usually dried before
being collected.
Which drying agents may be used to dry ammonia?
1 calcium oxide, CaO
2 phosphorus(V) oxide, P4O10
3 concentrated sulfuric acid, H2SO4

Question

When ammonia, NH3, is produced in a school or college laboratory, it is usually dried before
being collected.
Which drying agents may be used to dry ammonia?
1 calcium oxide, CaO
2 phosphorus(V) oxide, P4O10
3 concentrated sulfuric acid, H2SO4

aaronq · Answer

What reactions do the drying agents undergo with water?

anonymous · Answer

1) hydration since it becomes calcium hydroxide 3) dissociation? 2)umm p4O10 just gets converted to phoshporic acid 
Is this what you ask?

aaronq · Answer

yep. so do you think they'll be any side reactions?

which drying agent wont cause a reaction with ammonia?

anonymous · Answer

Side reactions??

anonymous · Answer

You're asking if there are any other products formed in above reactions with water?

aaronq · Answer

Not with water but between ammonia and the drying agent (now hydrated)

anonymous · Answer

H2SO4 does react with NH3

aaronq · Answer

so which one doesnt?

anonymous · Answer

1 and 2??

aaronq · Answer

nope. you said that p4O10 just gets converted to phosphoric acid 

wouldn't that react with ammonia?

anonymous · Answer

Ohh yes yes

aaronq · Answer

k cool. so you would use the one that wouldn't react

anonymous · Answer

Oh it's such a tricky question i got only one hour to solve 40 mcqs

anonymous · Answer

Yeah absolutely because we need a dried NH3 not the one reacted.

anonymous · Answer

Thankyou so much

aaronq · Answer

yeah, it's sort of overall knowledge though process question. it's good

no problem!

anonymous · Answer

:)