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denis23 [38]
1 year ago
12

Measurements on two essentially monodisperse fraction of a linear polymer, A and B, yield molecular weights of 100,000 and 400,0

00, respectively. Mixture 1 is prepared from one part by weight A and two parts by weight B. Mixture 2 contains two parts by weight of A and one of B. Determine the weight-average and number-average molecular weight average of mixtures 1 and 2.
Business
1 answer:
ANTONII [103]1 year ago
4 0

Answer:

Explanation:

weight average = fraction of A X MW of A + fraction of B x MW of B  

Mixture 1  

1 / 3 x 100000 + 2/3 x 400000 = 900000 / 3 = 300000

Mixture 2

2/3 x 100000 + 1/3 x 400000 = 600000 / 3 = 200000

Number average  

Mixture 1  

(1 / 100000 x 100000 + 2 / 400000 x 400000) / (1/100000 + 2/400000 )

= 3 x 400000 / 6  

= 200000

Mixture 2  

(2/100000 x 100000 + 1/400000 x 400000 )/ (2/100000 + 1 / 400000 )

3 x 400000 / 9  

=( 4/3 ) x 100000

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The amount of deposit is 369.77 dollars

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1 year ago
A delivery service is buying 600 tires for its fleet of vehicles. One supplier offers to supply the tires for $ 80 per​ tire, pa
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Answer:

$4,372.71

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Step 1

Total payment due = Per tire × Bought tires

= $80 × 600

= $48,000

Step 2

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Step 3

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Step 5

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Step 6

Total present value = Present value of second offer + Tires cost

= $24,907.77 + $15,000

= $39,907.77

Here we can see that first offer is higher than second offer

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The difference between the first and the second offer = First offer - Second offer

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A huge momentarily reward can blind long term gain and during this period.

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In a large metropolitan market, it is relatively easy to set up a law office. The ease of entry explains why you will find hundr
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Answer:

1

Explanation:

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In the long run, firms earn zero economic profit.  If in the short run firms are earning economic profit, in the long run firms would enter into the industry. This would drive economic profit to zero.  

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