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There are three separate definitions for acids and bases (yes, your textbook has only two, but the third one is listed in the lecture presentation). Describe and differentiate between the three definitions. Can an ion of an alkali metal (sodium, etc.), alkaline earth metal (calcium, etc.), or a halogen (chlorine, etc.) act as an acid or a base? If so, which definition? If not, why not? In addition, can an ion of a transition metal act as an acid or a base, under any of the three definitions? Why or why not? Make sure to explain and support each of your responses.
Textbook: Introductory Chemistry: An Atoms First Approach Julia Burdge
Explain when 2-methylpropanoyl chloride reacts with 3-methylbutanoic acid in the presence of the weak base, pyridine. Depict the tetrahedral intermediate where all atoms have a zero formal charge.
a 50 ml vol. of 25 ppm solution of niiiis made fromnicl26h20.a.what is the concentration of niii in micromolar units.b.
In a constant pressure calorimeter, (1.4250x10^2) mL of a 1.00 M metal chloride solution (MCl2(aq)) were added to (1.4250x10^2) mL of a 0.500 M potassium sulfate solution.
Predict the wavelength (in nm) of the lowest energy electronic transition in the dye polymethine ion. Assume all C-C and C-N bond lengths are the same and are 1.4 A (0.14 nm) and that N+1 contributes 1 π-electron and N contributes 2 π-electrons.
Glutamic acid contains two carboxylic acid groups. Draw the skeletal structure of all the peptides you can make combining one of each of these amino acids.
What are most important organelles? Is How does biochemistry describe life processes? there a simple basis for classifying organisms?
consider the reaction CO2+H2=CO+H2O.The equilibrium concentrations are [CO]= 0.050M, [H2]=0.045M, [CO2]=0.086M, and [H2O]= 0.040M. Calculate K .
Problem- The solubility of carbon dioxide in water is 0.161g CO2 in 100mL of water at 20 degree Celsius and 1.00 atm. A soft drink is carbonated with carbon dioxide gas at 5.50 atm pressure. What is the solubility of carbon dioxide in water at thi..
The mass of a proton is 1.00728 amu and that of a neutron is 1.00867 amu. What is the mass defect (in amu) of a 60Ni nucleus
5. A superheated water is water heated above 100oC without boiling. Just like supercooled water (water cooled below 0oC without freezing), superheated water is thermodynamically stable. Calculate the values of ΔSsys,ΔSsurr, and ΔSuniv when 1.5 moles ..
Oxygen and sulfur combine to form a variety of different sulfur oxides. some are stable molecules and some, including S2O2 and S2O3
A 125-g piece of metal is heated to 288 oC and dropped into 85.0 g of water at 26 oC. If the final temperature of the water and metal is 58.0 oC, what is the specific heat of the metal (J/goC)
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