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The following results have been obtained for temperature dependence of the percentage of chain termination by disproportionation in methyl methacrylate:
T(°C) 40 60 80% Disproportionation 50 59 70
a.) Calculate the difference in activation energy between disproportionation and combination.
b.) At what temperature will termination be 90% by combination?
A titration of 200.0 mL of 1.00 M H2A was done with 1.10 M NaOH. For the diprotic acid H2A, Ka1 = 2.5 × 10-5, Ka2 = 3.1 × 10-9. Calculate the pH after 600.0 mL of 1.10 M NaOH have been added.
Given the following at 25°C and 1.00 atm: 1/2N2(g) + O2(g) ® NO2(g)DH0 = 33.2 kJ N2(g) + 2O2(g) ® N2O4(g)DH0 = 11.1 kJ Calculate the DH0 for the reaction below at 25°C. 2NO2(g) ® N2O4(g)
A 0.5485 g solid mixture have only ferrous chloride hexahydrate and ferrous ammonium sulfate hexahydrate. dissolved in 1M sulphuric acid get oxidized to Fe3+ with hydrogen peroxide, and get precipitated with cupferron.
Determine the molarity of Ni in the 20.0 mL solution? Determine the mass in grams of Ni in the original sample? Determine the weight percent of Ni in the sample?
Which molecule below exhibits dipole-dipole interactions but not dispersion forces. a)HF b)HCl c)CO2 d)CH3OH e)none of these
What's more significant an affect on atomic size, an increase in nuclear charge or increase in occupied energy levels within a group
How many grams of O2 are needed to react with 18.5 grams of Mg? 2 Mg(s) + O2(g) → 2 MgO(s)
A solution is prepared by dissolving 10.5 g ammonium sulfate in enough water to make 100.0 mL of stock solution. A 13.00 mL sample of this stock solution is added to 55.00 mL of water. Calculate the concentration of ammonium ions and sulfate ions ..
How much energy must be supplied to break a single 6Li nucleus into separated protons and neutrons? (masses: 6Li, 6.01347; 1H, 1.00728; 1n, 1.00867 amu)
Consider the reaction with the rate law, Rate = k[BrO3-][Br-][H+]2 By what factor does the rate change if the concentration of BrO3- is doubled and that of Br- is doubled
What is the equilibrium concentration of chloroacetic acid, HC2H2O2Cl, in a solution prepared by dissolving 0.0277 mol of HC2H2O2Cl in 1.00 L of water
What mass of barium sulfate can be produced when 100.0 ml of a 0.100 M solution of barium chloride is mixed with 100.0 ml of a 0.100 M solution of Iron(III) sulfate
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