For the synthesis of the copper-ammonia complex from the copper-water complex. Would a difference be observed if we dried our crystals in a hot oven as opposed to air-drying them for a few days? If there is, explain this observation. Which is better?
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- Generally high temperature is favourable for chemisorption.’ Why?The fraction of sites bound on the particular macromolecule is 0.53 at a ligand concentration of 0.01992 mol/L. The equilibrium constant of the ligand binding reaction is 460. Determine the Hill coefficient.Describe the types of metal complexation you would anticipate in first order streams. And why you chose these types of complexation?
- For the powder with composition 9wt.% Al, 3wt.% Ni and 88wt.% Mg Calculate the possible Gibb's Free energy (which reactions are most favorable) in a closed system of 610 °CConfirm that the following CO adsorption data on activated carbon at 273 Kfollow the Langmuir or Freundlich isotherm and determine the volumecorresponding to the complete coverage of the surface.) Describe the substitution process for the reaction of Cisplatin and the guanine nucleobase with a focus on what is happening at the metal center and demonstrate your understanding of the kinetic factors involved. b) What advantages or disadvantages for the anticancer drug properties would result from using a Cisplatin-analog that has a faster rate of ligand substitution?
- The red color of soil is often due to the presence of iron. Metal ions are extracted from soil by stirring the soil in acid and then filtering the solution. One method for the analysis of Fe2+ is to form the highly colored Fe2+–thioglycolic acid complex. The complex absorbs strongly at 535 nm. Calibration standards of 1.00, 2.00, 3.00, 4.00, and 5.00 ppm are prepared by transferring appropriate amounts of a 10.0 ppm working solution of Fe2+ into separate 50-mL volumetric flasks, each of which contains 5 mL of thioglycolic acid, 2 mL of 20% w/v ammonium citrate, and 5 mL of 0.22 M NH3. After diluting to volume and mixing, the absorbances of the standards are measured. a)What is the effect on the reported concentration of iron in the sample if there is a trace impurity of Fe2+in the ammonium citrate?The red color of soil is often due to the presence of iron. Metal ions are extracted from soil by stirring the soil in acid and then filtering the solution. One method for the analysis of Fe2+ is to form the highly colored Fe2+–thioglycolic acid complex. The complex absorbs strongly at 535 nm. Calibration standards of 1.00, 2.00, 3.00, 4.00, and 5.00 ppm are prepared by transferring appropriate amounts of a 10.0 ppm working solution of Fe2+ into separate 50-mL volumetric flasks, each of which contains 5 mL of thioglycolic acid, 2 mL of 20% w/v ammonium citrate, and 5 mL of 0.22 M NH3. After diluting to volume and mixing, the absorbances of the standards are measured. a)Use the data table below to prepare a calibration curve (absorbance versus concentration in ppm). Fit the data to straight line and find the equation for the straight line and the R2 value. (Hint: Think about what to do with the absorbance of the blank.)Do you expect DH (the change in enthalpy) to be positive or negative for the reaction involving the formation of the aluminum/xylenol orange complex? Briefly explain your answer.
- i) Silver ion (Ag+) reacts with SCN- ion to form silver thiocyanate (AgSCN). What change will the student observe when a solution containing Ag+ ion is added to the mixture? ii) Briefly explain how your answer to is consistent with Le Chatelier’s principle.Provided the data from lab on Preparation of a Coordination Complex of Copper (II), determine the following (show all work): the molar mass of Copper (II) sulfate pentahydrate (show work from given) molar mass of the product actual yield and percent yield from the sample dataWhat is the major limitation of IR regarding the materials that can be used for instrumental components.