Polymers Questions and Answers

SO3 aq MnO aq SO aq Mn aq EN HEND PE EINE C ENWARTE THERINE

If the concentration of so ions when equal volumes of 0 1 M MgSO4 and 0 1 M KNO3 are mixed together is Assume all electrolytes are completely ionizable in the solution x Then the value of 100 x will be Answer 00 01 02 03 04 05 06 07 08 09 00 01 02 03 04 05 06 07

Kevlar is a strong synthetic fiber used in bullet proof vests and body armor Kevlar is made by the condensation reaction betwe 1 4 phenylene diamine and terephthaloyl chloride Modify the monomers to create one repeat unit of the polymer O What other small molecule is produced in this reaction Give the formula of the small molecule produced

Explain why the mass of the solute is conserved when a solution is diluted

Question 1 Which phase change is exothermic solid to liquid liquid to gas liquid to solid solid to gas

Question 4 Which segment of the graph represents a time when both the solid and liquid phases are present Temperature C AB DE OEF BC B C Time minutes E F

Complete the following reaction KOLL

Observe this picture and choose the correct statement A B O When combined B might be found in oils O When combined B might be found in cholesterol O Uncombined B might be found in fats

Which one of the following is the repeating unit of the polymer formed in the polymerization of para hydroxybenzoic acid fot 604 to 0 Structure B O Structure D Structure C Structure A B 1 008 D S

C I U I

Identify the following structures F F T I C C T F F H C H n n H3C CH H LAX n HH T B

FICIF H C H FICIF n J 0 H3C CH 11 H H H n H H

An example of polystyrene polymer could be found in a Insulation b Yarns c Adhesives An example of polyacrylonitrile polymer could be found in a Insulation b Fabric An example of poly vinyl acetate could be found in a Packing materials b Wigs c Paints c Computer disks An example of poly methyl methacrylate could be found in a Furniture b Orlon c Textile coatings The number after a compound trade name is usually an indication of a Stock number b Successful attempt d Meaningless d Plexiglass d Lucite d Bowling balls d Plexiglass d None of these

An example of a linear polymer would be a Kevlar b Rubber An example of a branched polymer would be a PVC b Kevlar An example of a cross linked polymer would a LDPE b PVC An example of a network polymer would be a Rubber b LDPE An example of polyethylene polymer could be found in a Carpet b Garden Hose c LDPE An example of polypropylene polymer could be found in a Plastic bags b Plastic wrap c Rubber c Kevlar c PVC c Toys An example of polytetrafluoroethylene polymer could be found in a Plastic bottles b Plumbing parts c Cooking utensils c Carpeting An example of polyvinylchloride polymer could be found in a Carpeting b Plastic Toys c Sewer pipe d PVC d LDPE d Rubber d Kevlar d Cooking utensil d Bottles d Teflon d Cooking utensil

Complete the following reaction O KOH

For a particular process AG AH at a given temperature and pressure Therefore O AS is negative if AH is positive and positive if AH is negative ASAG T AS is zero 0 GA