Compute the number-average molar mass mn of the polyamide

Assignment Help Chemistry
Reference no: EM13266933

A polyamide was prepared by bulk polymerization of hexamethylene diamine (9.22 g) with adipic acid (11.68 g) at 280 degrees C. Analysis of the whole reaction product showed that it contained 2.6 x 10-3 mol of carboxylic acid groups. Evaluate the number-average molar mass Mn of the polyamide, and also estimate its weight-average molar mass Mw by assuming that it has the most probable distribution of molar mass.

Reference no: EM13266933

Questions Cloud

Find the largest possible number of independant vectors : Find the largest possible number of independant vectors v1=column[1 -1 0 0] v2= column[1 0 -1 0] v3=column[ 1 0 0 -1] v4= column[ 0 1 -1 0] v5= column[0 1 0 -1] v6= coolumn[ 0 0 1 -1] note all are column vectors
How much external financing will the firm have to seek : How much external financing will the firm have to seek? Assume there is no increase in liabilites other than that which will occur with the external financing.
Find the width of the first-order bright fringe : Light of wavelength 5.60 multiply.gif 102 nm passes through a slit of width 0.180 mm. Determine the width of the first-order bright fringe
Determine the line voltage and the phase voltage : A balanced Y-connected load of 100 + j50 Ohm is connected to a balanced three-phase source. If the line current is 42 A and the source supplies 12kw, determine (a) the line voltage; (b) the phase voltage.
Compute the number-average molar mass mn of the polyamide : Evaluate the number-average molar mass Mn of the polyamide, and also estimate its weight-average molar mass Mw by assuming that it has the most probable distribution of molar mass.
Compute the velocity of the first block after collision : Two blocks are travelling towards eachother. The first has a speed of 10cm/sec and the second has a speed of 60 cm/sec. compute the velocity of the first block after collision
Find the intrinsic gain of an nmos transistor fabricated : Find the intrinsic gain of an NMOS Transistor fabricated in a process for which kn'=200 uA/V^2 and V'A =20 V um. The transistor has a 0.5-um channel length and is operated at Vov=0.25 V. If a 2-mA/V transconductance is required, what must ID and W..
What is the annualized cost of not taking a discount : Use a 360 day year for this problem. What is the annualized cost of not taking a discount on a $100,000 transaction if the the credit terms are 2/15 net 45?
Determine how much power is each bulb absorbing : three light bulbs (P1= 30W, P2=40W, P3=50W) are connected in series to a 120v source find the current i through the bulbs. Each bulb is rated 120 volts. how much power is each bulb absorbing do they generate much light

Reviews

Write a Review

Chemistry Questions & Answers

  Steps in the mechanism for the following reaction

Show all the steps in the mechanism for the following reaction, When benzene is mixed with deuterated sulfuric acid, deuterium is slowly incorporated onto the ring. Show the mechanism for this reaction and explain how this relates the sulfonation of ..

  Prior to placing piece of metal into the graduated cylinder

This assignment inhibits chemistry Laboratory Questions.

  Write the structures of the saytzeff elimination

Write the structures of the saytzeff elimination

  Calculate ph - chemistry questions

Chemistry Questions on Calculate P H

  How many mols of hydrogen can produce

how many mols of H 2 can produce

  Analysis of corrosion mechanisms

Analysis of corrosion mechanisms and preventative measures

  Chemical and pharmaceutical science

Write an equation for the formation of an acetal from reaction of excess methanol with benzaldehyde in the presence of an acid catalyst.

  Calculate the approximate sulphur

Calculate the approximate SO 2 mass emission in lb/day.

  What is the structure - stereochemistry

What is the structure (including functional groups)? Stereochemistry (racemic or single enantiomer)?

  Design a qualitative analysis scheme

Design a qualitative analysis scheme

  What will be the resultant pressure

What will be the resultant pressure when the stopcock is opened?

  The 1h nmr spectrum

Integrals for some of the resonances in the 1H NMR spectrum are higher than they should be due to the shear number of hydrogens in this compound

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd