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The following table gives the reactivity ratios for free radical copolymerization of Styrene with (a) butadiene, (b) acrylonitrile and (c) vinyl acetate. For each of these copolymerizations: (i) Plot the instantaneous copolymer composition in the complete range of monomeric mixture. (ii) Calculate the composition of the copolymer formed at low conversions of an equimolar mixture of the two monomers. (iii) Calculate the comonomer composition required to form a copolymer consisting of 50 mol% styrene repeat units Monomer A Monomer B rA rB Styrene; Butadiene 0.78 1.39 Styrene; Acrylonitrile 0.40 0.04 Vinyl Acetate; Styrene 0.01 55
Determine the activation barrier for the reaction.
a 5.08-g chunk of potassium is dropped into 1.06 kg water at 24.0degc. what is the final temperature of the water after
what would the rate constant be at a temperature of 150C for the same reaction described in Part A?
the solubility of o2g in water is 4.43 mg o2100 g h20 at 20 degree celsius when the gas pressure is maintained at 1
Choose any one chemical process industry, and describe various types of reactors used in that Industry. Diagrams and neat flow sheets may be included wherever they are relevant The student should critically anlyse the use of a particular type of r..
Draw the basic repeating unit of polyethylene terephthalate (PET). Classify PET as a polyamide or polyester. Is PET a condensation or addition polymer? Explain.
If 3.00 g of (NH4)2SO4 is dissolved in enough water to form 200. mL of solution, what is the molarity of the solution?
At 1.00 atm and 0 °C, a 5.04 L mixture of methane (CH4) and propane (C3H8) was burned, producing 18.0 g of CO2. What was the mole fraction of each gas in the mixture? Assume complete combustion.
Taking into account resonance, which of the following has/have the weakest C-O bond
a trapeze artist swings from a rope 4.15 m long in a simple harmonic motion with a period of 4.1 s calculate the value
This solution is allowed to cool to room temperature and then placed in an ice bath. What is the theoretical maximum percent recovery
Methyl salicylate, C8H8O3, the adorous constituent of oil of wintergreen, has a vapor pressure of 1.00 torr at 54.3 degrees celsius and 10.0 torr at 95.3 degrees celcius. What is it's vapor pressure at 25 degrees celcius?
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