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A neutral amino acid has a pka1 of 4.0 and a pka2 of 10.0. What is the pH of the solution of this amino acid if 80% is in the acid form and 20% is in the base form.Give the structure of the principal species present at this pH.
Calculate the cell potential for the following reaction that takes placen in an electrochemical cell at 25 degrees C.
Joe makes up a 0.1M solution of Potassium Fluoride. He uses a pH meter to test the pH of the solution. What is the most reasonable value he would find?
Calculate the pH of the solution after 52.00 mL of HNO3 is added. What is the: 1) moles of KOH: 2) moles of HNO3: 3) [H3O]+: 4) pH of the solution
A gas cylinder containing 6.38 mol of neon has pressure of 491mmHg at 295k. If 3.22 mol helium is added at constant temp and pressure, what will be the pressure in the cylinder
Draw the structure of a compound with the following analytical data: a mw of 72 g/mol, no silver mirror in a Tollen's test, and a yellow precipiate formed in an iodoform test.
hydrochloric acid reacts with aluminum to form aluminum chloride and gseous hydrogen. whats the mass of aluminum
What is the final volume of the balloon. Assume that the pressure inside and outside the balloon has the same value. Ans. V = 34.8 L
before the civil war the south graded with the north and with england. it sold cotton and bought manufactured goods
List the molecular geometry and the electron pair arrangement of all possibilities that would give a polar molecule when all the surrounding atoms are identical.
What is the lewis dot structure of Cl2O add formal charges to the atoms remember that the formal charges will add up to the ion charge
Consider a voltaic cell at 25o C consisting of a Mn/Mn2+ half-cell and a Pb/Pb2+ half-cell ([Pb2+] and [Mn2+] are 1.0 M). If you want to convert this voltaic cell into an electrolytic cell, how many volts must you supply
Decide whether or not each of the following metals dissolves in 1 M HCl . For these metals that do dissolve, write a balanced redox reaction showing what happens when the metal dissolves.
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