An organic compound have carbon = 40.6 5%, hydrogen= 8.55%, nitrogen =

1.	An organic compound have carbon = 40.6 5%, hydrogen= 8.55%, nitrogen =23 .7%and rest is oxygen .If the vopour density is 29.5 .calculate the molecular formula .
Answer» Explanation: Molecular mass =2×Vapor density=59 g mol −1 % C=40.65⇒ 100 59×40.65 =24 g/moles= 12 24 =2 moles % H=8.55⇒ 100 59×8.55 =5 g/moles= 1 5 =5 moles % N=23.77⇒ 100 59×23.77 =14 g/moles= 14 14 =1 moles Mass of oxygen =59−43=16 g/moles=1 Molecular FORMULA is C 2 H 5 NO

An organic compound have carbon = 40.6 5%, hydrogen= 8.55%, nitrogen =23 .7%and rest is oxygen .If the vopour density is 29.5 .calculate the molecular formula .

Answer»

Explanation:

Molecular mass =2×Vapor density=59 g mol

−1

% C=40.65⇒

100

59×40.65

=24 g/moles=

=2 moles

% H=8.55⇒

100

59×8.55

=5 g/moles=

=5 moles

% N=23.77⇒

100

59×23.77

=14 g/moles=

=1 moles

Mass of oxygen =59−43=16 g/moles=1

Molecular FORMULA is C