A) Determine bond order of each and if it is paramagnetic, diamagnetic, or undef

Question

A) Determine bond order of each and if it is paramagnetic, diamagnetic, or undefined:
1. Bond Order F2^2-
2. Magnetism F2^2-
3. Bond Order O2
4. Magnetism O2
5. Bond Order Ne2+
6. Magnetism Ne2+
a) 0
b)0.5
c)1
d)1.5
e)2
f)2.5
g)3
B)In which of the following gases will the root-mean-square speed of the molecules be the highest at 200°C?
a)N2
b)NH3
c)O2
d)UF6
e)none
C)direct or inverse relationship:
a) pressure and volume
b) volume and temp
c) pressure and temp
d) # of moles of gas and pressure
e) # and volume of moles of gas
D) in the combustion of 11.8 g of butane with 12.9 g of oxygen gas, what is the maximum volume in L of pure dry carbon dioxide that could be produced at a temp of 295K and a pressure of 100.7 kPa?

Explanation / Answer

A .Sol:-

1. Bond Order F22- :-  

Bond oder of F22- = Nb (number of bonding electrons) - Na (number of antibonding electrons) / 2

= 10 - 10 / 2

= 0

2. Magnetism F22- :-

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3. Bond Order O2 :-

Bond oder of O2 = Nb - Na / 2

= 10 - 6 / 2

= 4 / 2

= 2

4. Magnetism O2 :-

Total number of electrons in O2 = 16 i.e even, but it has 2 unpaired electrons therefore O2 is Paramagnetic .

5. Bond Order Ne2+ :-

Bond oder of Ne2+ = Nb - Na / 2

= 10 - 9 / 2

= 1 / 2

= 0.5

6. Magnetism Ne2+:-

Total number of electrons in Ne2+= 19 i.e odd means it has 1 unpaired electron therefore Ne2+ is Paramagnetic .

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