1unlike most vinyl polymers, poly(vinyl alcohol) (pva) is soluble in water. why is this? use chemical structures in your explanation. 2. when dissolving pva in water, why is it important that the temperature not exceed 80°c? 3. what chemical species are produced when borax dissolves in water? 4. the molecular weight for pva is about 95,000 g/mol. what is the molecular weight of a pva monomer unit? how many monomer units are in a pva molecule? (round to the nearest integer.) 5. draw the chemical structure of the repeating unit in the nylon polymer and circle the linking bond. 6. besides nylon, what other product is formed from the reaction of adipoyl chloride and 1,6- diaminohexane? 7 describe, in your own words, the three components that make up the structure of dna. where is dna located in the cell? 8. describe, in your own words, the three basic steps required to isolate dna. explain the purpose of each step.