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Of the following only_______has sp^2 hybridization of the central atom NF_3 HCN

ID: 1019931 • Letter: O

Question

Of the following only_______has sp^2 hybridization of the central atom NF_3 HCN BF_3 ICI_3 CH_4 What is the molar mass of a gas which has a density 0f 1.30 g/L measured at 27.0 degree C and 0.400 atm 38.0 g/mol 48.0 g/mol 61.5 g/mol 80.1 g/mol 97.5 g/mol If the closed system produces 300 kJ of heat and does 100. J of work, the change of internal energy of the system is -1.30 10^3 kJ -1.30 10^3 J -200 kJ 301 kJ -310 kJ The hybrid orbital set used by the central atom in ClO_2 is____. Draw Lewis structure sp sp^2 sp^3 sp^3d sp^3d^2

Explanation / Answer

(15) (C) BF3 involves in sp2 hybridisation

(16)

p = dRT/M

M = dRT/p = 1.3*0.0821*300/0.4 = 80.1 g/mol

(17)

change in internal energy = q + w = - 300 - 1 = - 301 kJ

(18)

In ClO2- the central atom involves in sp3 hybridisation. and the geometry is pyramidal.

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