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At what optimum pH would you recommend to separate cytochrome C; pI 10.6 from a mixture od myoglobin; pI 7.0, ribonuclease; pI 7.8, and leucine; pI 6.0 using a Dowex 50 column? Explain.
consider the expansion of 1L of gas orginally at 9 atm pressure to 1 atm pressure. the T remains constant at 25*C. Defining the gas as the system, calculate the work done on the system when
How much heat is required to raise the temperature of 5.5 x 10^2 g of aluminum by 10°C?
Consider that there are two sources of OH-in this procedure. Also, an excess of 3 mL will need to be added to your calculated value in order to suppress the hydrolysis of Al 3+.
Describe the type of bonding that your unknown has (covalent, polar covalent). Locate and show any dipoles in your compound
What is the empirical formula of a compound which contains only colbalt and oxygen. if an 8.29 grams sample of the compound contains
What is the mass of H2SO4 in 520.0 cm3 sample of sulfuric acid that has a density of 1.55 g/cm3 and which consists of 55.0 % H2SO4
Specify the organic solvent and aqueous solutions to be used for the separation. Provide the exact acid-base reaction that occurs during each step of the separation
What is the pressure in a 10.0L cylinder filled with .448 mol of nitrogen gas at a temperature of 315k
Determine the molar mass of the nonelectrolyte if the osmotic pressure of the solution = 23.6 atm, also express your answerin g/mol?
Calculate the energy of a photon emitted when an electron in a hydrogen atom undergoes a transition from n = 4 to n = 1. I need an explanation of the formula too.
How many grams of copper (II) sulfate are required to prepare 500 mL of a .25 M solution
How to calculate the pH of 0.375 L of a 0.18 M acetic acid-0.29 M sodium acetate buffer before and after the addition of (a) 0.0060 mol of KOH and (b) 0.0060 mol of HBr.
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