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Calculate the Volume occupied by 5.25g of Nitrogen at 26 degree cecius and 74.2cm of pressure

Calculate the Volume occupied by 5.25g of Nitrogen at 26 degree cecius and 74.2cm of pressure

Grade:9

2 Answers

Kartikey sharma
34 Points
9 years ago

P= 74.2/76 atm

V=?

m=5.25 g

M = 28 g

T=273+26

T=299 K

PV=nRT

74.2/76 x V= m/M x  0.0821 x 299

V=5.25 x 0.0821 x 299 x 76 /74.2

V=4.71074201 L

 

Ayush kumar
15 Points
3 years ago
We know that PV=nRT
So V=nRT
            P
For n
n= w/M
So 5.35/28.    (Mol. Wt. Of N2 is 28) and when it is not given then we take their gas not atom
T is taken in Kelvin. So 273+26=299
And pressure in atm 7.42/76
V=5.35×0.082×299×76.  
            74.2
=4.71.Answer
 
 
 
 
 
 
 
Answer=4.71 and this question is from book written by RC mukherjee pg no 16 qno 11

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