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Hemoglobin has a positive charge of +5 and a radius of 3.55 nm in water. How far will the protein travel in one hour in an electrophoresis gel at 25C when a field of 1.0 V cm^-1 is applied if the viscosity of the gel is 0.891 cP
Calculate the mass of water formed by the complete reaction of 758 g of propane (C3H8) with excess oxygen
In the reaction below, 4.86 atm each of H2 and Cl2 were placed into a 1.00 L flask and allowed to react: H2(g) + Cl2(g) 2 HCl(g) Given that Kc = 89.9, calculate the equilibrium pressure of HCl.
Give equations for the reaction of aspirin with the following: a. acetyl chloride/ pyridine b. methanol/HCl/heat c. sodium bicarbonate, room temperature d
How many grams of potassium permanganate are needed to decolorize 1g of 2-pentane in basic solution?
Compute the difference in the ionization energies for the 1H 2H atoms(The ionization energy is the energy of the transition from the n=1 to the n=infinity energy levels for the hydrogen atom. )?
If 0.5110 g of H2C2O4 x 2H2O completely neutralized 41.39 mL of the stock NaOH soln what is the concentration of the NaOH solution?
How does the entropy of the system PbI2(s) + H2O(l) change as PbI2 (s) dissolves in water at 25 degrees celsius? Explain your answer.
Calculate the molar mass and density of dry air at 0 °C and 1.0 atm. Assume ideal behavior and use two significant figures
A solution was prepared by mixing 43.00 mL of 0.190 M HNO3 and 108.00 mL of 0.150 M HNO3. Calculate the molarity of the final solution of nitric acid.
How many grams of sodium lactate (NaC3H5O3 ) should be added to 1.46 L of 0.150 M lactic acid (HC3H5 O3, Ka = 1.4 x 10-4) to form a buffer solution with pH = 4.12
What mass of water would need to evaporate from your skin in order to dissipate 1.7 × 105 J of heat from your body? H2O(l) → H2O(g) ΔHvap = 40.7 kJ/mol
Draw four structures corresponding to dihedral angles of 0, 60, 120 and 180 degrees. Clearly indicate the best and worst in this set.
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