The adsorption equilibrium isotherm for aqueous phenol solution and activated carbon can be determined from the following data: c kg phenol/m3 solution q kg phenol/kg carbon 0.3220 0.150 0.1170 0.122 0.0390 0.094 0.0061 0.059 0.0011 0.045   Determine the appropriate isotherm for this experimental run

Show how the composition of an aqueous solution that contains 30 mmol dm-3 tyrosine varies with pH.

To study the photochemical decomposition of aqueous bromine exposed to bright sunlight, we dissolved a small amount of liquid bromine in water contained in a glass jar and placed under direct sunlight. The following data were obtained at 25\deg C:\table [[Tiempo (min ), 10, 20, 30, 40, 50, 60], [Ppm, 2.45, 1.74, 1.23, 0.88, 0.62, 0.44]] Determine the reaction rate order and the specific reaction rate constant: a) Differential method ( The method for obtaining the derivatives is left to your decision) Tiempo (min) Ppm Br₂ 10 2.45 20 1.74 Ć 30 1.23 40 0.88 50 0.62 60 0.44

Write the equation and Ksp expression for the dissolution of nickel(II) phosphate in water (const. temp.).

Xsn AGM J/mol The Gibbs free energy of formation, AGM, of liquid Sn-Cu alloys at 1400 K, as a function of composition, are listed below. From these data, plot the composition dependencies of the activity of Sn (asn) and Cu (acu). 0 0.1 0.2 0.3 0-8,042 -11,860 -13,370 0.4 -13,810 0.5 0.7 0.6 0.8 0.9 1.0 -13,250 -12,090 -10,390 -8,104 -5,004 0

A7

One published value for Keq for FeSCN2+ formation is approximately 113 at 20oC. Based on this value, does equilibrium favor the formation of FeSCN2+, or does it favor the reverse reaction? Briefly justify your answer.

12:27 12-2 Analyzing Data... NAME Energy (kJ) NAME 1000 Many chemical reactions involve a change in energy. When the energy of the reactants is greater than the energy of the products, the reaction gives off heat and is exothermic. When the energy of the products is greater than that of the reactants, the reaction must absorb energy from the surroundings to occur and is endothermic. If the intermediate stage (the activated complex) is of a higher energy, then the reaction can only take place if the reactants are given an initial energy input (the activation energy). The graph shows energy diagrams that indicate how the energy changes as three reactions occur. Energy Changes for Three Reactions 800 600 Dashboard 400 200 DATE 0 ANALYZING DATA Interpret Energy Diagrams CLASS Direction of reaction 000 000 Calendar DATE .5GE 14 A D Copyright © Savvas Learning Company LLC. All Rights Reserved. Savvas is not responsible for any modifications made by end users to the content posted in its…