Calculate the number-average and weight-average molar mass, Mathematics

Assignment Help:

Three mixtures were prepared with very narrow molar mass distribution polyisoprene samples with molar masses of 8000, 25,000, and 100,000 as indicated below.

(a) Equal numbers of molecules

(b) Equal masses of sample

(c) Equal viscosities of sample dissolved in tetra hydro furan

(K = 19.5 L g-1, a = 0.73)

For each of the samples, calculate the number-average and weight-average molar mass, and comment on the meaning of the values obtained.


Related Discussions:- Calculate the number-average and weight-average molar mass

Shares and dividend, a man in rested rupee 800 is buying rupee 5 shares and...

a man in rested rupee 800 is buying rupee 5 shares and then are selling at premium of rupee 1.15. He sells all the shares.find profit

Fractions, Rider dribbles the ball 1/3 of the basketball court on the first...

Rider dribbles the ball 1/3 of the basketball court on the first day of practice. Each day after that he dribbles 1/3 of the way more than he did the day before. Draw a number lin

Circles, alternate segment theorum

alternate segment theorum

Geometry, how much congruent sides does a trapezoid have

how much congruent sides does a trapezoid have

Finding the side of a triangle only using equations, In triangle DEF, angle...

In triangle DEF, angle E is congruent to angle F. If side DE = 3x-6, Side EF = x+2 and Side DF = 18-5x. Find the length of side DE

Logarithm functions, Logarithm Functions : In this section we'll discuss l...

Logarithm Functions : In this section we'll discuss look at a function which is related to the exponential functions we will learn logarithms in this section. Logarithms are one o

3-d coordinate system - three dimensional spaces, The 3-D Coordinate System...

The 3-D Coordinate System We will start the chapter off with a quite brief discussion introducing the 3-D coordinate system and the conventions that we will be utilizing.  We

How much did sally earn if she worked 48 hours, Sally gets paid x dollars p...

Sally gets paid x dollars per hour for a 40-hour work week and y dollars for every hour she works over 40 hours. How much did Sally earn if she worked 48 hours? Since she worke

Example of addition, Example 1 Add 4x 4 + 3x 3 - ...

Example 1 Add 4x 4 + 3x 3 - x 2 + x + 6 and -7x 4 - 3x 3 + 8x 2 + 8x - 4 We write them one below the other as shown below.

Write Your Message!

Captcha
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