Describe at least three ways in which condensation polymers differ from addition polymers in terms of their structures and the ways that they form.

Which of the following did you include in your response?

The monomers that form condensation polymers are di- or polyfunctional.

A polymer can grow from any location on the chain where a functional group is available.

A polymer does not contain all the atoms originally in the monomer units.

A small molecule, such as water, is produced when the monomers react to build the polymer.

given:

mass of na = 115 g

excess cl2

to determine:

mass of nacl produced

explanation:

given reaction is-

2na(s) + cl2(g) → 2nacl(s)

since cl2 is in excess, na will be the limiting reagent

as per the reaction stoichiometry na: nacl = 1: 1

i.e. moles of na reacted = moles of nacl formed

now, # moles of na = mass of na/atomic mass

                                  = 115 g/23 g.mol-1 = 5 moles

therefore, moles of nacl = 5

molar mass of nacl = 58 g/mol

mass of nacl = 5 moles * 58 g.mol-1 = 290 g

ans: amount of nacl produced = 290 g