Question

find the the volume at stp number of moles and number of molecules of N2(g)in it sample of 140g (given molar mass =28g mol)​

Answer 1

Answer:

N  

2

​

+3H  

2

​

⟶2NH  

3

​

 

Number of moles of N  

2

​

 in 140g=  

28

140g

​

=5 moles of N  

2

​

 

Number of moles of H  

2

​

 in 30g=  

2

30

​

=15 moles of H  

2

​

 

moles                    N  

2

​

+3H  

2

​

⟶2NH  

3

​

 

at t=0                   5                 15                        -

after reaction   5−5×1     15−3×5          2×5

Thus 10 moles of NH  

3

​

 produced after reaction

as number of moles=  

volume at STP

volume of product

​

 

⇒10=  

22.4L

V

​

⇒V=224L

Explanation:

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