Poly decamethylenced ia fate of the repeating units of [CoCH Coo [CH]-a-] has a density of a. 19 was Plasicized using dimethyl from umide [CH NCH] The density of the Plasticizeris 0.1445 2 An calculate the melting Point of the Plasticizer Polymer If you know the Pure Polymer is 73.66 and Alle is 128 155/mot

8.3 Polycarbonate is made by mixing 25 kg bisphenol A with 15 kg phosgene (see Example 2.4N) in a batch reaction. What are the maximum number-average chain length, Xn, and maximum number average molecular weight, Mn, of this polymer?

In experiment of hydrogen peroxide, the dissociation was equal to (30%) after time is (35 min.) in a room temperature. Calculate the percentage of hydrogen peroxide that can be presented after passing five hours ?

Using the following data, compare the effect of supersaturation ratio over the range of 1.005 to 1.02 on the primary homogeneous nucleation of AgNO3, NaNO3, and KNO3 from aqueous solutions at 25oC:

A mixture of 70%Tween 60 and 30%Span 65 was found to give optimum stability to a particular emulsion system. What composition of a mixture of sodium dodecyl sulfate and cetyl alcohol should be expected to produce the same result? In what proportion should Span 80 and Tween 80 be mixed to obtain “required" HLB of 12.0? You were asked to raise the HLB of the previous mixture by three units. Give three suggestions of achieving this using Tween 20 and sodium oleate as additives?

1- Calculate the sp of the salt (AICI,) if the concentration of Al* is 0.022M. AICI, Alt + 3Ch 2- what is the unit of the sp of the solubility of the salt AICI.

Describe the banding pattern expected after fixing, washout, and staining of an SDS-PAGE of protein with subunit structure α2β2, where MWα = 50 kDa and MWβ =30 kDa, using Co-omassie brilliant blue G250.

Select the missing product of this decay reaction: 234 Th 90 ? + e O 234 Ра 91 234 Ac 89 O 234 Th 89 O 233 Ac 89

In some formulations, why would an LDP Liquid Dispersible Polymer or pre-neutralized acrylate polymer be more advantageous that a regular powdered crosslinked or linear acrylic acid based homopolymer / copolymer?