Consider the following distribution of polymer chains:8 chains of degree of polymerization 1022 chains of degree of polymerization 10060 chains of degree of polymerization 50035 chains of degree of polymerization 10005 chains of degree of polymerization 50002 chains of degree of polymerization 50000A. Calculate the number and weight average degree of polymerization and polydispersity of this collection of polymer chains. B. If these chains were poly(vinyl alcohol), what are corresponding number and weight average molecular weights

the answer is 1260

you spend 7 hours in school for 1 school day with 5 school days in 1 school week with 36 school weeks in a school year.

7*5*36= 1260 it's all about multiplying

hydrocarbons are organic compounds that contain only hydrogens and carbons. they can be saturated (those which contain only carbon-carbon single bonds) or unsaturated (those which contain carbon-carbon double or triple bonds) in nature. hydrocarbons can undergo several reactions like substitution, elimination etc.  

on substituting one or more hydrogen atoms in hydrocarbon it results in the formation of haloalkane. as the halogen atoms are large compared to the carbon and hydrogen atoms, due to which the molecular weight increases and the bond become polar because of presence electronegative halogen atom and results in the increase in boiling point of the haloalkane.

thus, the correct option is (b) that is the boiling point of the new compound increases on substituting a hydrogen atom with a halogen in a hydrocarbon.

50.23 i believe is correct but don't quote me on that.