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Organic Test 1

Ch 1-4

QuestionAnswer
Cation Positively charged (less electrons)
Anion Negatively charged (more electrons)
The more polar the bond... the more electronegative the bond
What elements have the highest electronegativity? F-4 O-3.5 N, Cl-3.0 Br-2.8
What elements have the same electronegativity as C? S and I 2.5
List the elements with electronegativity of 2.4 and 2.2 Se, Au (2.4) Ru, Os, Pd, Ir, Rh, Pt (2.2)
List the elements with electronegativity of 2.1 and 2.1 P, At, H, Te (2.1) Po, As, B (2.0)
$What is the name, hybridization and bond angle for a four bond C Tetrahedral, sp3, 109
$What is the name, hybridization and bond angle for a three bond C Trigonal planar, sp2, 120
$What is the name, hybridization and bong angle for a two bond C Linear, sp, 180
$What is the length of a single C-C bond and the length of the C-H bonds C-C: 154pm C-H: 110pm
$What is the length of a double C-C bond and the length of the C-H bonds C-C: 133pm C-H: 108pm
$What is the length of a triple C-C bond and the length of the C-H bonds C-C: 120pm C-H: 106pm
$What is the angle of a N-H bond with one group of valence electrons 107
$What is the angle of a O-H bond with two groups of valence electrons 104
$What is the formula for dipole moment u=difference in electronegativity (Q) x distance separating charges (r)
Rule of electron movement In multiple bond, electron movement is always towards most electronegative atom
What is the length of a typical C-O bond 135pm
What is the length of a typical C-O double bond 120pm
Rule of resonance form drawing any three atom grouping with a p orbital on each atom as two resonance forms
What is a Bronsted-Lowry acid a substance that donates a proton (H+)
What is a Bronsted-Lowry base a substance that accepts a proton (H+)
What is a conjugate acid The product that results when a B-L base gains a proton
What is a conjugate base The product that results when a B-L acid loses a proton
Give the equation for the acidity constant, Ka HA + H2O -> A- + H3O+ Ka=Keq[H2O]=[H3O+][A-]/[HA]
The stronger the acid (larger Ka) the smaller the pKa
A Lewis acid accepts an electron pair
A Lewis base donates an electron pair
What direction do dipole arrows go positive to negative
Electronegativites between 0 and 0.5 are nonpolar covalent
Electronegativites between0.5 and 2 are polar covalent
Electronegativities greater than 2 are ionic
What is the formula for alkanes CnH2n+2
Constitutional isomers differ in their connections between atoms
Conformations are rotation of sigma bonds
What is the formula for cycloalkane CnH2n
Cis on the same side
Trans across
Stereoisomers atoms connected in same order but differ in three-dimensional orientation
cyclopropane
cyclobutane
cyclopentane
cyclohexane
Created by: hweems90