3.7. Consider a 1:1 stoichiometric polymerizaton of 1,4-diaminobutane with sebacoyl chloride. 1,4 diaminobutane: sebacoyl chloride: (a) Write down a balanced chemical equation for the polymerization (b) Name the class of polymer formed (c) Using the Carothers equation, calculate the extent of reaction required to produce this polymer with number average molar mass of 25kg/mol. Neglect end groups. (d) Explain the consequences of including some 1,1,4,4-tetraminobutane (shown below) in the polymerization