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Consider a solution of 0.1 M Zn2+ and 0.1 M Cu2+ that is saturated with H2S. Explain the solubility product constants for ZnS and CuS are 1.1e-21 and 6e-36 respectively. Demonstrate that both ZnS and CuS will precipitate at a pH of 8.
Five metal rods (Copper, Iron, Nickel, Tin and Zinc), at room temperature, of equal mass are place in a 100 oC water bath. Which metal will reach 80 oC first.
A student performed the reaction of this experiment (preparation of aspirin) using a water bath at 90 degrees C instead of 50 degrees C. The final product was tested for the presence of phenols with ferric chloride.
In the titration if an impure sample of KHP, it was found that 36.0mL of 0.100M NaOH was necessary to react completely with 0.765g of sample. Explain what is the percentage of KHP in this sample
most of the medications that we ingest are removed from our bodiesvia a first order process. it is the aim of the
Protein Sequencing Question. Determine the sequence of a peptide consisting of 14 amino acids on the basis of the following data
The density of platinum is 21.5g/cm3. Platinum displays a cubic packed structure with a unit cell edge length of 392pm. Calculate the atomic mass of platinum using this data
A 50.0 ml sample of 0.100 M HClO4 is titrated with 20.0 ml of 0.200 M NaOH. What is the pH of the resulting solution
a 1.5 mol sample of pcl5 is injected into a 0.50-l reaction vessel. calculate the concentration of each gas at
Air is 21 mole percent oxygen, that is, 0.21 atm oxygen at 1 atm. Suppose the pH of the water is 5.28 and that the concentration of iron(II) in the water is 5.38x 10-5 M, what is the potential of the corrosion reaction under the above conditions a..
explain the terms absolute refractory period relative refractory period sodium equilibrium potential and the
Carbon monoxide and chlorine combine in an equilibrium reaction to produce the highly toxic product, phosgene (COCl2). CO(g) + Cl2(g) Picture COCl2(g) If the equilibrium constant for this reaction
Why is the Beer - Lambert law in units of absorbance rather than in units percent transmittance
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