Explain the determination of molecular weight of polymer samples using dilute viscosity measurement

Q: The surface tension of water at 20°C is 72.7 mN m and its density is 0.998 g cm" Assuming a contact…

A: Given that, at 20oC The surface tension of water is γ = 72.7 mN/m = 0.0727 N/m = 0.0727 kg/s2. The…

Q: 2. Using potassium permanganate as an Brownian movement relates to diffusion. example, explain in…

A: Brownian motion is the movement of individual or groups of particles suspended in a fluid in a way…

Q: An ostwald viscometer was used to determine the time of flow of syrup at 20°C Data of water: Time of…

A: Viscosity is called the fluidity, a measure of the ease of flow. Relationship between viscocity of…

Q: 5 if the viscosity of Nacl = 664.256 mpa.s viscosity of NaOH= 1.00979 cp viscosity of water= 0.6531…

A: We have to calculate the viscosity of the entire mixture. The given data is:\ Viscosity of NaCl=…

Q: n measuring the surface tension of a liquid (drop weight method), 20 drops of the liquid (r=0.2cm)…

A: olume = Area x Height   , Mass = Volume x Density   ,  Force = Mass x Acceleration V = P r2 H…

Q: How can I determine the bulk density from their mass in bulk volume

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Q: Is it possible to have a homogeneous, binary liquid solution that has a higher (or lower) viscosity…

A: Solution stoichiometry involves the calculation of concentration of solutions in the given…

Q: When the temperature is 20 ° C, water flows through an ostwald viscometer at 363 s, whose density…

A: Viscosity of a substance is a glowing capacity of that substance. Normally thin liquids have  less…

Q: Producing a polymer part whose medium of use will be water at a constant temperature of 90°C is…

A: The above mentioned polymer chain has a repeating unit which contain amide group. Amide are formed…

Q: see the graph and determine/give the ff: a. 1 eutectic point (temp and composition) b. 1…

A: Solutions- The given graph is phase diagram of Mg2SiO4 compound.

Q: An ostwald viscometer was used to determine the time of flow of syrup at 20°C Data of water: Time of…

A:

Q: What is the relationship of viscosity to the rate of flows of liquids?

A: Viscosity is a measure of a fluid's resistance to flow. It describes the internal friction of a…

Q: n 14 ch of the following corresponds to a layer of ions unaffected by fluid motion and is separated…

A: According to Helmholtz this double layer consist of two opposite charged layers at a fixed distance…

Q: What is the distinction between matrix and dispersed phases in a composite material?

A: a composite is formed with a continuous phase called the matrix. As shown in the figure below, the…

Q: 6. why is the segmental mobility of a polymer reduced by the presence of the filter?

A: We have to tell the reason of the decrease of the segmental mobility of the polymer in the presence…

Q: The viscosity coefficient of gaseous chlorine at 1 atm pressure and 20 ᵒC is 147.0 micropoise. Find…

A: The expression to calculate the collisional cross-section of a molecule is:…

Q: The surface tension of water at 20°C is 72.7 mN m and its density is 0.998 g cm³. Assuming a contact…

A: This problem utilises the concept of balancing of downward pressure force with the suface tension…

Q: DETERMINATION OF ABSOLUTE VISCOSITY USING OSTWALD VISCOMETER: A group of students enrolled in a…

A: Given: density of water at 296 K = 997.532  kg/m3 = 0.9975 g/mL absolute viscosity of water at 296 K…

Q: Syneresis is a process by which there is the loss of water trapped within the gel matrix through the…

A: Syneresis is a process by which there is loss of water trapped within gel matrix through release of…

Q: 9- It flows (10 cm') of olive oil during a capillary tube (2 cm in length and (0.04 mm in diameter)…

A: Given, Volume = 10 cm3 Capillary length = 2 cm Diameter = 0.04 mm Height of the olive oil in…

Q: The viscosity coefficient of methane at 0 °C is 102.6x10-6 poise. Calculate the molecular diameter.

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Q: What is the density of nitrobenzene at 30 degree centigrade and How can you describe the viscosity…

A:

Q: The diffusion coefficient for CCl4 in heptane is 3.17 × 10−9 m2 s−1. How long does a molecule take…

A: Diffusion coefficient D = 3.17 x 10-9 m2/s Viscosity η = 0.386 x 10-3 kg/m-s 1 molecule diameter =…

Q: Which is NOT a factor affecting the viscosity of liquids? Group of answer choices Molecular mass…

A: In the given question we have to select the correct choice for not affecting the viscosity of…

Q: Help me I'm crying right now. I can't do this Topic: Viscosity The results for each solutions to be…

A: Given : water solution = 7.63 seconds  Starch solution = 8.73 seconds  To find : why the time…

Q: Relative ViSCOsity

A: Viscosity is a measure of a fluid's resistance to flow. It describes the internal friction of a…

Q:

A: Given that, w/v % = 0.85%  M.Wt = 58.5 g mol-1  Normality = ?

Q: Do the conclusion to polymer molecular weight determination by dilute solution viscosity…

A: Dilute Solution Viscosity measurement is the viscosity measurement of dilute solutions of polymer…

Q: What is dispersion statistics? Why is it important?

A: Answer - According to the question - Dispersion is a statistical term that describes the size of the…

Q: The mobile phase of a GC is known as

A: GC is Gas Chromatography which is an analytical separation technique used to separate and identify…

Q: Determination of the Surface Tension of a Liquid by the Capillary Rise Method: A group of students…

A:

Q: How many independent (directions where the Miller Indices differ by more than a factor of -1) close…

A: The FCC unit cell is the simplest repeating unit in a cubic close-packed structure and in FCC…

Q: Discuss the importance of bulk vs. surface properties of biomaterials. Briefly describe the…

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Q: How high will sap rise in a plant if the capillaries are 0.01 mm in diameter and the density of the…

A:

Q: Identify the molecule with highest viscosity at 298K? O CH3COCH3 O CHs O CH3COOH O CHA O H20

A:

Q: Determination of the Surface Tension of a Liquid by the Capillary Rise Method: A group of students…

A: Given:

Q: III. Experimental Data Table 3b.1. Observation on determination of melting point of unknown A.…

A: The percent error is calculated using the formula: Percent error=Actual value-theoretical…

Q: Пrр dv 8nL using a propagation of errors technique as applied to Poiseuille's law d error in the…

A:

Q: Calculate the surface excess of solute given the following data:Molar concentration in bulk solution…

A: The volume of 1.0 dm3 to 1000 cm3. The surface excess of the solute is calculated as shown below.

Q: The following data apply to a 1g sample of a granular powder Volume of the solid alone = 1 cm3/2g…

A:

Q: relation between melting temperature Tm and maximum crystallization temperature of polymer

A: The answer is given below

Q: How does the melt temperature of the main phase affect diffusion?

A: The entropy of fusion and the melting temperature have a governing influence on the self-diffusion…

Q: It requires 40 sec for a volume of water, density 1.0 g/ cm³, to flow through a capillary viscometer…

A: Given that, Viscosity of water = 0.01 poise. Time taken by water = 40 sec. Time taken by glycerin…

Q: What could be the effect of trapped bubbles in the viscometer during the run on (a) the measured…

A: Type of problem depending upon size of bubbles: A small amount of very small bubbles has no effect.…

Q: The time of efflux of water through an Ostwald viscometer is 0.60 minutes. For the same volume of an…

A: Given data runoff time for water : tw=0.60 min runoff time of organic liquid : torg=1.25 min density…

Q: Determination of the Surface Tension of a Liquid by the Capillary Rise Method: A group of students…

A: Given:

Q: Describe how does a fluid offer viscosity flux? Explain the effect of temperature and pressure on…

A: Viscosity is the internal friction which opposes the relative motion of the adjacent layers of the…