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Salters PR

Salters Polymer Revolution

QuestionAnswer
what are the reagents and conditions to convert an alkene into (mono)bromoalkane? HBr, room temp+pressure
what are the reagents and conditions to convert an alkene into (mono)bromoalkane? Br2, room temp+pressure
what are the reagents and conditions to convert an alkene into an alkane? H2, high temp 150C+Nickel Catalyst
what are the reagents and conditions to convert an alkene into alcohol? 300C,60atm,Phosphoric Acid catalyst
what are the reagents and conditions to convert an halogenoalkane into an alcohol? NaOH(aq),heat under reflux
what are the reagents and conditions to convert an halogenoalkane into a nitrile? KCN, heat under reflux
what are the reagents and conditions to convert an halogenoalkane into an amine? NH3 in ethanol, in a sealed tube, heat
what are the conditions to convert an alkene into a polymer? low temp,high pressure,
How do you answer this question "what is the reagent?" given the equation Draw the structural formulae of reactant and product. What is the difference?
Define electrophile A chemical with an atom that is electron deficient (may have a positive charge) Able to accept a PAIR of electrons to form a covalent bond
Define addition When two molecules join to form a SINGLE one
Bromine is added to Buta1,3DiEne. What is the product? 1,2,3,4TETRABromoButANE Remember ALL/EACH double bond will react with Bromine Remember the product is saturated, no more double bond so the name will be finishing in ANE
What do you draw when asked "draw the repeating unit" given the monomer STRAIGHTEN the bonds above and below the double bonds Open the double bond Brackets across the opened bond "n" after the bracket
How do you answer when asked to "explain why compound A has a higher boiling point than compound B" when they both have only id-id? Consider the size of the whole molecule for id-id (the more electrons, the stronger the dipoles will be; the stronger the force/bond between molecules)
What type of bonds will give rise to id-id? ALL compounds have id-id; but a Hydrocarbon (C-H bond) has ONLY id-id
What type of bonds will give rise to pd-pd? C=O or C-Cl
What type of bonds will give rise to H-bond? O-H or N-H
What type of IMB in polyethene? id-id
What type of IMB in propanol? id-id and H-bond
What type of IMB in polychloroethene? id-id and pd-pd
How do you work out the number of units in a polymer? Work out the RMM of the repeating unit; then RMM(polymer)/RMM(monomer)
Name example of physical properties (tensile) Strength; conductivity; hardness; melting/boiling point
What term is used to describe a polymer formed from 2 different monomers? Co-polymer
How would you draw curly arrows during an electrophilic addition? Show bond polarities Draw the arrow from the middle of the double bond to the delta+ Draw the polarised bond (from middle of the bond) folding onto delta- Draw the carbocation and the anion Draw a curly arrow from lone pair on anion to positive carbo
What TYPE of reaction is a polymerisation? radical reaction
How do you draw a Hydrogen bond? Show lone pair on the Oxygen or Nitrogen atom on first molecule Show the bond polarities on the O-H bond on the other molecule Ensure that the O-- H-O are on a straight line
What type of isomerism is shown in But-2-ene? geometric isomerism
What are the names of the 2 isomers in But-2-ene? E when the two Methyl groups are on opposite side of the double bond Z when they are on the same side
Why is there no isomerism shown on 2Methyl PropEne? Draw the structural formula. Carbon-1 carries two Hydrogens: SAME group on ONE carbon
Where does geometric isomerism arise from? The double bond is not able to rotate
Created by: UrsulineChem