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At what optimum pH would you recommend to separate cytochrome C (pI 10.6) from the mixture of myoglobin (pI 7.0), ribonuclease (pI 7.8) and leucine (pI 6.0) using a Dowex 50 column? Explain
Consider the combustion of glucose (C6H12O6). This reaction is 1. spontaneous at all temperatures 2. non-spontaneous towards lower temperatures 3. non-spontaneous at all temperatures 4. spontaneous towards higher temperatures
Calculate the percent yield for the reaction: P4 (s) + 6 Cl2 (g) → 4 PCl3 (l) if 75.0 g of phosphorus reacts with excess chlorine gas to produce 111.0 g of phosphorus trichloride.
Use standard reduction potentials (shown below) to calculate the potential of a nickel-cadmium cell that uses a basic electrolyte that has a 0.6 M hydroxide concentration.
A mixture of SO2, O2, and SO3 at 1000 K contains the gases at the following concentrations: [SO2] 5.0 x10-3 M [O2] 1.9 x10-3 M [SO3] 6.9 x 10-3 M Is the reaction at equilibrium
a sample of gas occupoes 17ml at -112 degrees C. what volume does the sample occupy at 70 degrees C.
Calculate the volume occupied by 15.4 g of carbon dioxide at STP, assuming ideal gas behavior.
A 98.5-L tank of argon gas at 2940 psi is allowed to vent into an airtight room that is and in which the temperature is 20.0 °C and the air pressure is 756 mmHg. Assuming ideal behavior, what is the volume percent argon in the air in the room afte..
How many nodal planes does a 4p sublevel contain and why. What is the possible set of quantum numbers for an electron with spin up in the 4d sublevel.
Desalination of brackish water is achieved by evaporation. A fraction of feed water is sent through an evaporator and the other is bypassed. The fraction bypassed and the pure water leaving the evaporator are mixed together to give the desalinasie..
If 67.0 mL of 0.119 mol/L NaOH(aq) and 35.0 mL of 0.193 mol/L HA(aq) are mixed, then what is [HA] at equilibrium. Assume that HA is a weak monoprotic acid with pKa=6.23 at 25oC.
sample of unknown HCL solution reacts completely with Na2CO3 to form 15.1g CO2, What was the concentration of the HCL solution?
1. In a plot of absorbance verus time, what are the units for the slope 2. Assuming a pathlength of 1 cm
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