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A heat-resistant polymer Nomex has a number-average molecular weight of 24,116. Hydrolysis of the polymer yields 39.31% by weight m-aminoaniline, 59.81% terphtalic acid and 0.88% benzoic acid. Compute the degree of polymerization and the extent of reaction.
Calculate the pH of a solution prepared by mixing 10.0 mL of 0.500 M NaOH and 20.0 mL of 1.50 M benzoic acid solution. (Benzoic acid is monoprotic: it's ionization constant is 6.7 x 10-5)
Nitrosyl bromide, NOBr, is 34 percent dissociated at 25 deg. C and the total pressure is 0.25 atm. Calculate kp and kc for the dissociation.
For weak acid, HX, Ka = 1.0 10^-6. Calculate the pH of a 0.82 M solution of HX.
a liquid unknown was found to be inslouble in water amp soluble in cyclohexane amp alcohol the unknown was found to
What would be the product if dimethyl fumarate (trans-MeO2CCH=CHCO2Me) was heated in the presence of 3-sulfolene?
If the energy required to break apart a mole of chlorine molecules is 243KJ, a photon of what frequency will break apart a single Cl2 molecuule. What is the wavelength of the photon
Explain when equilibrium is reached, the concentration of H2 has decreased to 0.046 mol/L. what is the equilibrium constant, Kc, for the reaction
Calculate concentrations of OH- and the pH of each basic solution. Since NaOH donates on OH- ion for each NaOH molecule, the OH- concentration is equivalent to the NaOH molarity. The pOH is calculated as -log[OH-] and the pH is calculated as 14-pO..
While 41.67mL of the calcium hydroxide solution is added to a 250.00mL volumetric flask, as well as water is added to the mark, explain what is the final calcium ion concentration (morality)
How many moles of oxygen are required for the complete combustion of 4.0 moles of decane to give CO2 and H2O
Which of the following would be a correct ranking of the following gases based on rate of effusion at STP. N2, O2, NO, NO2, N2O, N2O3
What are the concentrations of HOAC and OAC- in a 0.2M acetate buffer pH 5.0? The Ka for acetic acid is 1.70 X 10-5 (pKa = 4.77).
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