Questions With Complete Solutions
Law of Definite Proportions - Answer-all samples of a given compound have the same
proportions of their constituent element
/.Mass Number - Answer-A: protons + neutrons
/.Atomic Number - Answer-Z: Number of Protons
/.Density= - Answer-Mass/Volume
/.Frequency (v)= - Answer-Speed of light (c)/wavelength
/.Electron Groups= 2
Bonding Groups= 2
Lone Pairs= 0 - Answer-EG= linear
MG= linear
Bond Angle= 180
/.Electron Groups= 3
Bonding Groups= 3
Lone Pairs= 0 - Answer-EG= trigonal planar
MG= trigonal planar
Bond Angle= 120
/.Electron Groups= 3
Bonding Groups= 2
Lone Pairs= 1 - Answer-EG= trigonal planar
MG= bent
Bond Angle= <120
/.Electron Groups= 4
Bonding Groups= 4
Lone Pairs= 0 - Answer-EG= tetrahedral
MG= tetrahedral
Bond Angle= 109.5
/.Electron Groups= 4
Bonding Groups= 3
Lone Pairs=1 - Answer-EG= tetrahedral
MG=trigonal planar
Bond Angle= <109.5
, /.Electron Groups= 4
Bonding Groups= 2
Lone Pairs= 2 - Answer-EG= tetrahedral
MG= Bent
Bond Angle= <109.5
/.Electron Groups= 5
Bonding Groups= 5
Lone Pairs= 0 - Answer-EG= trigonal bipyramidal
MG= trigonal bipyramidal
Bond Angle= 120 (equatorial) 90 (axial)
/.Electron Groups= 5
Bonding Groups= 4
Lone Pairs= 1 - Answer-EG= trigonal bipyramidal
MG= seesaw
Bond Angle= <120 (equatorial) <90 (axial)
/.Electron Groups= 5
Bonding Grops= 3
Lone Pairs= 2 - Answer-EG= trigonal bipyramidal
MG= t-shaped
Bond Angle= <90
/.Electron Groups= 5
Bonding Groups= 2
Lone Pairs= 3 - Answer-EG= trigonal bipyramidal
MG= Linear
Bond Angle= 180
/.Electron Groups= 6
Bonding Groups= 6
Lone Pairs= 0 - Answer-EG= octahedral
MG= octahedral
Bond Angle= 90
/.Electron Groups= 6
Bonding Groups= 5
Lone Pairs= 1 - Answer-EG= octahedral
MG= square pyramidal
Bond Angle= <90
/.Hess' Law - Answer-ΔHrxn= Σ ΔHf (products)- Σ ΔHf (reactants)
*ΔS and ΔG can be calculated the same way*