Question

10. a) Arrive at the Lewis structure of XeF4 using the steps given in Unit 3.
b) Predict the hybridization state of each carbon atom in allene which has the following
structure:
CH2 = C = CH2
c) Calculate the number of normal modes of vibration for the following compounds:
i) H2O
CH4
ii) HBr

Answer 1

Answer on Question #76686 – Chemistry – Inorganic Chemistry

10. a) Arrive at the Lewis structure of $\mathrm{XeF_4}$ using the steps given in Unit 3.

b) Predict the hybridization state of each carbon atom in allene which has the following structure: $\mathrm{CH}_2 = \mathrm{C} = \mathrm{CH}_2$

c) Calculate the number of normal modes of vibration for the following compounds:

i) $\mathrm{H}_2\mathrm{O}$

ii) $\mathrm{CH}_4$

iii) HBr

Solution:

10. a)

b) $\mathrm{CH}_2 = \mathrm{C} = \mathrm{CH}_2$

There are $2\mathrm{sp}^2$ ( $\mathrm{CH}_2=$ ) and 1 sp hybridised C atoms ( $=C=$ ).

c) i) $\mathrm{H}_2\mathrm{O}$ - nonlinear molecule

$$3 \mathrm {N} - 6 = 3 \times 3 - 6 = 3$$

N - number of atoms

ii) $\mathrm{CH}_4$ - nonlinear molecule

$$3 \mathrm {N} - 6 = 3 \times 5 - 6 = 9$$

N - number of atoms

iii) HBr - linear molecule

$$3 N - 5 = 3 \times 2 - 5 = 1$$

N - number of atoms

Answer provided by AssignmentExpert.com