Degree of polymerization example problem

[@somidao2628]

thanks for being the only reason why I understand matsci

[@TaylorSparks]

I gotchu ;)

[@theDemolisher13]

Thank you so much for putting this into laymens terms.

[@TaylorSparks]

My pleasure!

[@tripti892]

Thanks alot love from india

[@jerishjoela4955]

If water gets eliminated in the reaction should I reduce the mass of 2nH2O from the reactant mass ? reply sir @Taylor Spark

[@hoomanmoghadas1768]

Could you please help me with this problem? Calculate the number-average and weight-average molecular weight of the mixture ) contains 50% molar fraction of a glucose polymer with degree of polymerization (DP) 98 and 50% molar fraction of maltose

[@BrainDead4689]

Why is Molecular Weight unit written as g/mol .. isn't that the unit of Molar mass?

[@TaylorSparks]

Same units. The only difference between a molecule and the polymer is how many mers are present. So it makes sense that they have the same units.

[@moldyy6834]

Is it conventional to round the degree of polymerization to a whole number? Thanks for the video

[@TaylorSparks]

No. Not necessarily. You should take into account sign figs from the tool you used to do the degree of polymerization calculation.

[@BobbyDo-p5m]

Do you have websites for this slide sir?

[@srilankatamil2486]

Thank you sir

[@TaylorSparks]

Glad to help! Like, sub, and share to help me grow the channel!

[@Phioowillswissen]

Nice video ;)

[@James-Tanner]

For some reason our text book ad DP=sum(Mn)/m not sum(Mw)/m is there a difference between these for DP

[@TaylorSparks]

No, not in principal. You could do the calculation at each molecular weight histograms step, or could do it on the average which is the more common approach. Or perhaps the sum was to include the possibility of multiple co-polymers and the degree of polymerization being impacted by multiple of these in the chain.