1011 - a) Fill in the MO diagram to the left for F . While...

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σ 1s σ 1s * σ 2s σ 2s * σ 2p σ 2p * π 2p π 2p * While you wait,…. a) Fill in the MO diagram to the left for F . b) What is the bond order for F ? BO = ½(10 – 8) = ½(2) = 1 Zero! HOMO = π 2p * 9 + 9 = 18 e - s Diamagnetic (not affected by a magnetic field) LUMO = σ 2p *
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How many sigma bonds and how many pi bonds are there in each of the following molecules? N N O C O O O 2- C C H H H H C C C C C C H H H H H H 3 σ & 1 π
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Section 7.0 CHAPTER 7- STATES OF MATTER Three states:    Gas Liquid Solid Molecular Speed Molecular Interaction Shape fast medium slow low medium high of container bottom  own shape of container Condensed phases
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Section 7.1 GASES Gases adopt the  shape  and  volume  of a closed container. If the volume of the container is changed,  the volume of the gas changes. Also the  pressure   increases! As volume  , pressure  V and P are  “indirectly proportional” Boyle’s Law :   PV = constant  (n and T constant)
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Section 7.1 Pressure Torricelli invented the  barometer . A sealed, inverted tube in an open vessel containing mercury. Mercury is a liquid and very dense. Hg atmosphere Height in mm Hg 1 mm Hg = 1 torr
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Section 7.1 Converting between pressure units 1 mm Hg = 1 torr 1 atm (atmosphere) = 760 mm Hg = 760 torr 1 atm = 1.01 × 10  Pa (pascal) Ex. 5.67 atm   torr 5.67 atm  ×  760 torr  = 4,309 torr atm Ex. 22.5 mm Hg  atm 22.5 mm Hg  ×      1 atm         = 0.0296 atm   760 mm Hg Ex. 22.5 mm Hg  torr 22.5 mm Hg  ×       1 torr      = 22.5 torr       1 mm Hg
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Section 7.1 Measuring pressure in a flask
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1011 - a) Fill in the MO diagram to the left for F . While...

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